Side by Side Comparison of: Comanro vs Anker vs J-Tech Digital vs Yooyo

I bought this for my sister. She works many hours on the computer and began having wrist pain. I bought this to try and help relieve some of her pain. It has worked beautifully. It is comfortable and the quality is great.

Overall, a good product. The mouse is comfortable, buttons are easy to reach and all have smooth action. The only button that bothers me a little bit is the back/forward button at the base of the chrome thumb panel. I have irregular-sized hands. My palms are large, and my thumb is a normal size, but my index, middle, ring, and pinky fingers are somewhat shorter than they should be for a hand that has a palm and thumb as big as mine. So when I want to hit the back button on this button cluster, I have to pull my thumb back to an uncomfortable angle to trigger it, which causes me to have to lift my fingers and palm off of most of the mouse. I am not docking any stars for this because I can't imagine that everyone would have this problem, as this is mostly related to the odd proportions of my hands, but I figured it was worth mentioning.

There are four DPI settings on the unit that can be changed on-the-fly by clicking a thin, transversally-situated chrome button at the base of the right and left mouse buttons. This is well-designed and I very rarely trigger this button by accident, if I have ever done so.

The scroll button has a nice, smooth action and is very easy to operate.

There are two power-on options for the unit. One which simply turns the mouse on, and another, which turns the mouse on and activates the light on the side, directly below the chrome thumb panel. I have noticed no difference in the operation of the mouse between these two power settings, of course, other than the light being on and changing colors every few seconds. It should be noted that the setting to keep the side light on will likely wear down on the battery faster than not having that light on.

The mouse comes in a nice hard box and includes a foam place holder to keep the mouse in place when it is in the box, a quick-start booklet, and a charging cable - USB to mini-usb - with a velcro strap for easy coiling and storage. The mouse is plug-and-play, out of the box. The mouse holds a charge for an exorbitantly long amount of time; I have had the device for about three months, and only needed to charge it for about two hours once. It had a charge out of the box that lasted almost a month with daily operation. I have used it slightly less, interchanging with another mouse intermittently since then, so it might be something more in the range of needing a charge once a month. Still, very limited amount of charging needed to operate this unit, which is a huge plus.

Build quality is good, but it unfortunately did not live up to my expectations for an $84 mouse. The chrome metal pieces of this mouse are rock-solid, and the black frame feels nice, but the dark blue components feel kind of cheesy at times. I also noticed that the switch on the bottom just doesn't look or feel very high-quality. The power switches on $30 logitech mice I have used in the past were of a higher quality. Overall, it's a high quality product, but the price point that I paid was a bit high for the build quality I ended up getting.

To add to the concerns about build quality, this is a light mouse. The listing gives you a shipping weight of 10.4 ounces, but no product-specific weight in the item listing (if anyone finds this, please respond to this post with a correction; I was unable to find it listed anywhere). I was expecting a much heavier mouse, but was floored by how light this unit actually is in real life. Just be aware of this if you are expecting a heavier mouse. This, in general, does not take away or hinder the performance of the mouse in any way.

Performance is unmatched for an ergonomic mouse. I prefer high-DPI settings, and sometimes like to change the sensitivity based on what I am doing. As stated earlier, changing the DPI setting on the unit is a cinch and can be done easily on the fly. The unit will tell you what DPI setting has just been selected by flashing the Human Ergonomics symbol a certain number of times. Overall, very easy to use this setting and cannot say that I have used any other mice - save a couple high-end gaming mice - that allow you to change DPI settings this easily on the fly.

Overall, despite some small setbacks, I'm a huge fan and would recommend this mouse to anyone shopping in this price range. Please be sure to read other reviews - especially from users with different hand sizes - to make sure you get a good idea of what their experiences are with the product. As stated earlier in the review, my hands have an odd size and should not be used as a basis for how this mouse will fit in your hand.

wow. Not cheaply fabricated at all. What might fool some less astute folks is the very lightweight, almost weightlessness of the product which is part of it's therapeutic value. It is aesthetically pleasing AND fast and accurate. The best thing about it is that I got it for my wife who has arthritis and it relieved the pressure in her wrist and fingers making her feel much better (and we all know about a happy wife/happy life). Have had this mouse for over a month and so far so good. Overall I highly recommend this mouse to EVERYONE and especially gamers and those who have hand/wrist issues!

Top flight vertical mouse good design takes about a week to get used 2 after that its a breeze totally satisfied with the purchase. KB Smooth gliding feather light well built i like the lights feature on the side & it,s rechargeable it lasts 1 & half to 2 months on 1 charge. The mouse is high end well worth the money i use it for everything.

I own a small business and my mouse and keyboard are my life. I just returned the new Logitech master mouse for this one and I have to say that I am pleased with this mouse. Very comfortable, good for my large hand size. This mouse seems well made. Maybe a little flashy with the light up feature which rotates a series of colored lights against the logo. I recommend this mouse, but might need to go back to the new Logitech master mouse as the scroll wheel on that mouse is like a Ferrari compared to this one and most others.

I started working from home on the computer all day for work. I started having some wrist pain and tried this to see if it helped. Shortly after using it the pain had gone away. After using it several months the bottom/side of my wrist started to hurt a little from resting on it. I started using a mouse pad and that fixed that. Some people have complained about the scroll wheel breaking. I think it takes some time to get use to pushing it to the side instead of down. Pushing down could break it. I caught myself trying to push down and after some time using it I have gotten use to pushing it to the side. I recommend trying one if you are having pain from using a mouse a lot.

I bought this after reading a review that said once you get used to it, it's a good mouse. I didn't have to get used to it at all. It felt perfectly normal immediately. I'm not sure I ever want to go back to a horizontal mouse again.

It's an amazing mouse for the price. I replaced a more expensive mouse with this one, and I'm happier with this one. I hope it holds up over time, because I love it.

One of the best things about this mouse is where the extra buttons are located. So many mice I've tried put the buttons so close to my thumb that I'm constantly clicking them by accident. The extra buttons on this mouse are in the perfect location so that I only click them when I mean to click them.

If there's any con at all, it's that it's a bit big for my hand, but not so big that I'm uncomfortable with it.

After writing my initial review, I feel compelled on my own to write a more detailed review.

I have used various Anker products and I have always been impressed by their beautiful industrial design, quality workmanship, and high usability and functionality. This mouse was no exception.

The 45 degree position of the mouse makes is really comfortable and ergonomic to hold, compared to other vertical mice that I have tried, which tend to be 90 degrees and too vertical.

In addition, the surface of the mouse is in a very comfortable type of material, which seems unique among the mice that I have tried. This speaks volume lot of Anker's attention to detail.

For me, I still have not fully gotten used to clicking with my wrist in a vertical position. I just read one of the reviews which suggested that I need to squeeze with my thumb and index finger, so I will give that method a try in the future.

I have recommended this mouse to others, and most of them have found it extremely comfortable. I am giving this to a friend who has been eyeing this since I got it.

In addition, I read that the newer version has a bit less vertical, still vertical enough to be very comfortable, but perhaps it will help my fingers transition to vertical mouse position.

By the way, after posting my initial review, Anker's customer service e-mailed me within 24 hours and offered me to try the newer version! I am really surprised and truly impressed by their follow up and offer. With over 1100 reviews, and a 4.3 star rating for this mouse, Anker didn't have to follow up with me, much less to make me such an offer.

With amazing customer service like this, they have earned a loyal customer in me!

---

Original review:

Very comfortable. However, I find clicking the button with the index finger is a bit hard for me when my wrist is in this position. So I stopped using it.

LOVE this mouse. I bought it because two weeks into a new job that required a lot of mousing, using a normal-shaped mouse was causing me lots of wrist pain. I have permanent nerve damage in my other (left) wrist, and I wasn't about to let the same happen to my right hand/arm. As soon as I started using this Anker mouse, the pain went away. I've been using it for over eight months now and love it. I've had no problems whatsoever with it. It will take some getting used to since the shape is different, but it's totally worth it.

This is the second ergo mouse I've purchased from Anker. I purchased this exact version several years ago and it held up very well. I don't expect these things to last forever and when the old one got worn out, I wanted to replace it with a duplicate.

Excellent ergo mouse, very comfortable, accuracy seems great and the soft-touch plastics are a nice choice.

"love it" is strong wording for a mouse, but it's really really good and I'm happy to be a repeat customer.

I went looking for a vertical mouse after experiencing increasingly severe wrist/shoulder/neck pain from computer work. I picked up this one along with a similar one from Anker, since I wasn't sure what shape would work better for me. The J-Tech ended up being the clear winner for me and is now my daily driver at work. The Anker one is now at home, since it's still better than a regular mouse; but I like it less than the J-Tech on just about every level. The Anker's buttons feel harder to press (putting more stress on my hand and wrist), and their locations feel less natural to me compared to the J-Tech (especially the back/forward buttons). The scroll wheel on the J-Tech feels better and more responsive, and the design puts my wrist in a more neutral position than the Anker. The dpi button is easy to access but hard to hit accidentally. I don’t know if I looove the ridged surface of the rubbery bits, but it doesn’t actively bother me and I mostly don’t notice it.

I did follow the tips here to remove the weights inside the mouse, but I’ve kept the little wrist pad attached since I’ve found it to be more comfortable for me. My wrist and shoulder pain hasn’t completely gone away, but it’s much improved, and I immediately notice the difference if I have to use a regular mouse for any period. Also, don't be discouraged if for the first day or two, you feel like you can't do anything with this mouse! It definitely took me a few (frustrating and slow!) days to get used to it, but then after that it's no problem.

I would definitely purchase this again, and may end up getting a second one to replace the Anker at home anyway.

This mouse is amazing.

I had been having some carpal tunnel issues for several years; I work about 11 hours a day in front of the computer, then go home and relax on the computer every evening. I spend the majority of my waking hours staring at a screen, mouse in hand. Accordingly, I started to develop some serious problems using my mouse after a few hours every day. It started off as a minor pain, but eventually it became a persistent pain. Something had to change.

I found out that Vertical Mice could alleviate the problem; I was skeptical -- VERY skeptical -- but I decided to give it a try. I ordered the Wired version of the mouse, since it was the cheaper one.

The day I recieved it, after using it for about two hours, I immediately ordered two more; One for the office, one for my wife. This time, I chose the wireless ones. I absolutely love it.

Without changing anything but my mouse, my carpal tunnel pain is COMPLETELY GONE. The graphics showing your two forearm bones twisting with traditional mouse use are accurate; Vertical mouse use prevents this problem and I'm not sure I can ever go back. I decided to leave a review after my brother-in-law that lives with me asked me to order him one as well.

This mouse is cheap, but well built. We don't use the removable palm rest, although it was one of the reasons I chose this model; I've found I'm slightly more accurate and have to move the mouse even less when I don't have the rest on. The scrolling is precise, the two thumb buttons are placed with enough space to rest your thumb in between them without hitting them, and the two main mouse buttons have a really nice springy action towards the tips of the buttons that's somewhat hard to describe.

If you have RSI or carpal tunnel, GET THIS MOUSE OR THE WIRELESS VERSION; It will change your life!

I have been used to working with ergonomic peripherals at my workplace and wanted to get one for my home system as well. But at the same time, I was not looking to spend a lot of money. Going by all the reviews posted, I ordered this mouse to give it a try.
The mouse arrived well in time and in a nice packaging. As per one of the reviews listed, it was claimed to be a heavy mouse but I did not felt that it was heavy. In fact it just appears to be the correct weight while using. Especially when compared to the other ergonomic mice that I have been using, this one seemed to be having the the correct weight, if not the perfect one.
Coming to the usage, the most important aspect, I have been using it for almost a week now and am happy with the performance. While it does what it is supposed to do - being an ergonomic mouse, it definitely has a learning curve to it. But once I got used to it, it is really comfortable to use, even with prolonged sittings.
The mouse runs on two AAA batteries - a pair comes with the mouse within the packaging - a really nice thing to allow you to get going immediately. The mouse gets detected immediately when plugged in, no specialized drivers or installations required.
Overall I am really satisfied with the purchase and would definitely recommend this mouse, if you are looking for one on budget.

As a software developer, I am semi-permanently attached to a mouse and keyboard. After more than twenty years in the industry, my wrists and digits have taken the brunt of the storm. Until recently, the worst of my work-related pains has been on my thumb from the way it rests on most mice. It locked and popped non-stop, and was miserable by the end of the day.

The reason that most of that is in past tense is due to this mouse. After trying numerous ergonomic mice and other pointing devices, I decided to try a vertical mouse. My searches landed me on this product, and the reviews were encouraging. It was packaged as would be expected, and I was up and running with the mouse in a matter of minutes. However, you do have to learn to walk before you can run. There is a learning curve, which comes as no surprise. It is just so very different than a traditional mouse, that you will find yourself wanting to hold it in awkward positions.

After a few days, though, it starts to become more natural. Three weeks in, and I could not be happier. While it does take some getting used to, I can honestly say that the pain in my thumb has been reduced by at least 75%. So, I have bought a second one for my mobile workstation, and my wife's interest is piqued to the point that I imagine that I will be ordering another one soon.

I have a history of elbow/wrist/hand pain in my mousing arm from a career of pointing and clicking on things. At work they prescribed me an Evoluent Vertical mouse which helped considerably. I bought this for home usage when I realised I was leaning to the left at home to try to simulate the same vertical mouse feeling on my home computer. If you haven't tried a vertical mouse you should, even before you start feeling pain. The over-pronated wrist position of normal mice crosses your radius and ulna which compresses all kinds of internal structures and it's not good for you in the long run. Using a vertical mouse takes a few days to get used to but it's worth it. As an added bonus, it used to annoy any of my colleagues who tried hi-jacking my ergo-mouse/keyboard to show me something at my desk... After a few clumsy attempts to click on things they'd always give up and return it to me ASAP.

So far I like it a lot. I also tried the Sharkk/Adesso vertical mouse at a shop. I like all four mice but so far I like this one the most. I have the wired version for my desktop.

Texture: My Evoluent mouse had a shiny slick texture that never felt that good in the hand and would collect a lot of fingerprint gunkage. This had a matte rubbery feeling surface with grip ridges. The Sharkk/Adesso mouse looked identical but the Adesso had the shiny smooth surface and the Sharkk was matte. I preferred the Sharkk to the Adesso FWIW.

Shape: This mouse has a more naturally curved hand shape that feels very natural in my hand. The Evoluent mouse was a simpler lump of rounded plastic. It's a better orientation than a regular mouse but it's not a great shape. I also like the wrist guard on this one - with my evoluent mouse, my palm heel always drags and get sore after a while.

Buttons: The buttons on this one feel much more solid and better placed under *my* fingers than any of the other three I've tried. The evoluent buttons always seemed too big and too long for my hands which meant harder actuation. The Sharkk/Adesso ones seemed OK but were more like long leaf style buttons than actual buttons and lacked feel. Some people have complained about the positioning of the thumb buttons on the J-Tech - I haven't had any trouble with them thus far but I remapped them with xmouse (no drivers are included). I guess you could disable them if they annoyed you. The thumb buttons on the Evoluent mouse are quite far apart - so far apart I never used them. The DPI button is large and better placed than the DPI button on the Evoluent mouse (under the palm?). Unlike the Evoluent mouse however, it doesn't have an up/down DPI button and it does it silently - it doesn't have LED indicators to tell what speed it's on. It just does it.

Size: The Evoluent mouse might work better for bigger hands - I believe they have wider range of sizes and left-handed models. I'm 5'6" and male FWIW. The J-Tech mouse works well for me but I can imagine someone with bigger hands finding it too small. I'm considering the Sharkk/Adesso mouse for my laptop since it seems a little more compact than either of the other two options.

Overall the J-Tech mouse is my favorite vertical mouse of the four I've tried, at least in the hand. I haven't tried the Adesso/Sharkk mice but I'd be willing to try them for mobile work, sacrificing the wrist guard and better shape for more portability. I'm not a fan of the Evoluent mouse at all any more. It's better than a normal mouse but it doesn't seem worth the extra money on ergonomics or longevity (I'm on my second: one burned out in under a year). Lefties and giant ham hands might need to check them out though.

The way to go for screen protection plus HD and clarity retainment. Fingerprints are not too bad, as compared to similar screens. After installing it, the "glue" became solid after 5 minutes or so and I tested the stability of the screen and it was solidly placed on the phone. No movement at all. Installation can be a bit tricky, but as with all screen protectors you gotta do everything slowly and make sure the edges are lined up to the edge of your screen. I bypassed the step of using the tape to guide it into place by holding it with both hands on each side of the glass. From there having a good eye and steady hand will guide you the rest of the way. Do this with a solid light on a clean desk/table.

I've had this screen protector on my S4 for about 8 months now and it is still going strong! I previously used matte screen protectors, but something about my phone case (which is a slide case that wraps around all the edges) made them peel up and bubble constantly. Tired of fighting, I got this and have no regrets.I am pretty hard on my phone, hence the case. I drop it, throw it, you name it. I've had it for about 2.5 years, so I'm not really that concerned about it.After having it for 8ish months, there are a few scratches. I'm not mad about it, though, considering how many times I've dropped it (this review makes me seem like an electronics killer, but I am fairly gentle, haha).Cleaning is kind of a bugger with this; I find the only way to really get it clean is with a glasses cleaning cloth, or a little water + a glasses cleaning cloth for that stuck on crud you don't wanna know about.I don't find it affects any of my use of the phone. The holes are cut just right and I haven't had so much as a corner lift with this. EXCELLENT product. I couldn't recommend this enough!

This screen protector will generously sacrifice itself to protect your screen from scratches and breakage in most reasonable scenarios.Pros:- feels just like the naked phone screen- quite thin- smooth rounded/beveled edges- inexpensive (especially vs professional screen repair)- arrives quickly- does not appreciably alter screen image or attenuate brightness- covers, but does not distort, the front-facing camera- protects much better than plastic/polymer screen protectors - has saved my 1st-gen S5 twice from a broken screen- good fit: comes within 0.5 mm of the chromed plastic border of the S5 on all sides- has so far survived 4 months of regular day-to-day useCons:- tricky, yet possible, to align while applying to phone screen (follow the directions)- may interfere with some phone cases that use a built-in screen protector (i.e., Lifeproof® cases)- oleophobic (literally, oil-fearing) fingerprint-resistant coating wears off after a few months - but - this is not a major inconvenience, and is typical even in the more expensive glass screen protectors I have used

The first one I ordered SHATTERED. Yep, that's right.Dropped my phone on a small pointy rock at just the right angle to totally destroy the display. This protector shattered completely.- And it totally protected the display underneath it - EXACTLY as it should have. I can't recommend it highly enough. It's perfectly clear, does not scratch, hides fingerprints. It's every bit the quality of the one's you buy at the cell phone store for $30-$40. I ordered two to replace the first one.

I bought a new phone for over $600 and less than a week later I dropped the phone and didn't know it but then I ran over it with my truck. When I started looking for the phone I found it in my drive way and the screen was busted all to pieces! After saying some major bad words I took the phone in and through it on the table. Later I went back to see how bad it was after removing the tempered glass I found the phone to be in perfect condition!!!! This product literally saved me over $600 !! If you have a phone with out this screen saver you are making a huge mistake!!!! This is the best investment I've ever made!! GREAT GREAT PRODUCT!!! THANKS FOR MAKING AN AMAZING PRODUCT!!

I've tried several so called screen protectors, this one is the best so far hands down. The kit comes with everything you need to prep your phone's screen surface for application. Especially useful is the enclosed sticker set to get those last few specs of dust off the screen which, unless you have access to a "clean room" are virtually impossible to eliminate completely. The product itself is substantial, not a flimsy and awkward proposition as others have been. The thicker material makes lining it up on the surface easier and adds an additional sense of security and protection. Once placed it does look like glass, very clear and does not detract at all from the beautiful high resolution display. Its been in use now several weeks and there's no slipping or sign that the seal will ever be compromised by accident. Highly recommend.

I purchased this mouse since I was having pain in my wrists. it really helped with the pain once I got used to it
PROs:
-- Great for RSI and wrist pain. I was at a point where I couldn't use my hand to eat anymore. it really helped along with medication.

CONs:
-- size is a little big. I have average hands and my index finger comes over the wheel in the natural position. Problem solved by using a wrist gel pad.
-- After 7 months of use, the mouse wheel is not working properly anymore. Sometime I just turn it and nothing happens.

Windows 10 PC. The only complaint is, sometimes pressing the back button takes you back two pages, like you double clicked the button. Otherwise, it feels good on the wrist. Get one of those gel wrist rest mouse pads, and this works quite well to reduce stress on the hand/wrist.

Like the feel, easy to use. Different rest position for hand, easier on wrist then bending backwards. More comfortable and easier to use.

Love this mouse, took little adjusting from a standard mouse. After a few days use and the muscles in my lower arm adjusting, I noticed my wrist hurting significantly less.

I love track balls, so this works well but I hate moving a mouse when a ball moves just fine, but I seem to be going thru them fast so I gave this a shot its real comfortable and is a great mouse

So far I have only used this mouse a couple of days but it is more comfortable than a standard mouse to me. However (tl;dr), the buttons are hard to press and the dpi button gets in the way. I also wish they made a left handed version.

My biggest complaint are that the buttons are too hard to press. Especially the mmb. I have to click this and hold it down all day long when working in 3d and I am afraid it's going to cause hand pain issues eventually. Same goes for the other buttons but to a slightly lesser extent. I would pay more for a mouse that had nicer/lighter buttons that only require light fingertip force. I probably only need like 40-45g of actuation force
(going off of my mechanical keyboard).

Next issue is I keep accidentally hitting the dpi button. Honestly I don't even want a dpi button, but I especially don't want one that my thumb accidentally hits because I like to rest my thumb on that ledge

Also I wish they made a left handed version of this mouse because then I would buy one for each hand and alternate. I already do this with a regular ambidextrous mouse.

I wanted to try out a vertical mouse. This one feels solid and conforms nicely to the natural shape of my arm at rest. However, actually using it for work purposes (which is pretty intense use for many hours a day) has been a problem, because I tend to squeeze my fingers around the vertical mouse, and it has caused some cramping in the middle of my hand. It's worth trying out to see if this style of mouse works better for you.

I've used the mouse for over a week and so far so good. It takes getting used to, because you use a different set of muscles to move the mouse, but the strain and pain of using a non-ergonomic mouse is gone. The only thing keeping it from being five stars is that the new hand position feels slightly awkward. If it allowed your hand to curl just a bit more, it would be in an anatomically neutral position. As it is now, the fingers are slightly extended, which puts a small amount of pressure when clicking the buttons, but far less than that of a normal mouse.

This mouse has been great for eliminating my wrist and shoulder pain. I was able to get about 6 months out of it before I started experiencing issues with the scroll wheel, where the scrolling would jump around, or briefly scroll in the wrong direction. I contacted Anker and explained my issue and they offered a refund or a replacement without the hassle of having to return the old one. The new one I received is perfect, no scrolling issues at all! This is a great vertical mouse, especially for the price.

The mouse fits my hand well and is certainly an improvement over a traditional mouse design. Here are my PROS and CONS.

PROS:
- The design fits my hand perfectly and really helps my wrist stay in a comfortable position during an entire work day.
- The buttons have a very satisfying click and are easy to press, which also reduces strain.
- Works immediately with Mac OS 10.11.
- Incredibly inexpensive for an ergonomic product.

CONS:
- The surface of the mouse is rather slick and I wish there was some thumb support. A minor gripe really and I'll probably add some with Sugru.
- There is no visible change on the mouse as to what DPI setting you are using. The red light on the side stays the same. You'll have to remember to change the DPI each time or adjust your OS's sensitivity according to the default mouse DPI setting.
- Not really a con but I do wish that the cord was braided nylon. I know I could get the wireless version but cords don't bother me.

Overall, I'm very satisfied with this product and will be buying another for my home computer as well.

I've been using this wired mouse for about a week now. After having aches and pains while at work in my hand and arm prior to purchasing this, I can honestly say these symptoms disappeared after a day or two of using this mouse.

I have a small hand and while I do wish this was slightly smaller, overall, I'm very pleased with the way it works. I like the way my hand doesn't have to twist to rest on it and it has a soft rubber grip area where the side of your hand rests on it while using it. This rest is removable, too, but I don't know why you'd want to remove it.

My only complaint is that while the rubber grip has ribs on it, it is still a bit too slippery at times and my hand slides down if I'm not paying attention. I don't have sweaty hands and have dry skin, so that probably doesn't help, either. It's not too much of an annoyance, but i do wish the rubber wasn't so smooth.

Other than that I'd say this product is high quality and I've already recommended it to my son and he purchased one last week for himself as he's a computer programmer and works on the computer for up to 12 hours a day. Also, you really can't beat the price as some of the vertical mouse products are upwards of $50.

Obviously these kinds of mice is always a compromise, however after trying several similar devices this one worked the best for wrist pain, just wished it was little larger.I definitely recommend this to everyone with wrist pain problems.

Having said that, this mouse have weird problem of being *heavy*. They did this on purpose, I dont know why - probably to "feel" more expensive. Inside, they have two additional weights (see photo), which add noticeable strain on wrist. Also, sometimes you need to pull the mouse up, and it is very hard to do, so you accidentally press those additional buttons on the left side and your browser page disappears - all because they added these two bricks inside

Good news is this is fixable, just open up the mouse (two additional screws sit hidden under two "sliders"), there should be 4 screws total - remove bricks and enjoy

UPDATE 2, after 10 months.

Mouse wheel started to fail, I disassembled it again and checked it. It turns out it actually *DESIGNED TO FAIL* with the time: rubber "tire" will lose traction with the plastic wheel, supporting it. Good news is - this is fixable too, if you "loosen" stopper that holds the wheel. As the result, mouse wheel will start working again, but you wont hear the click anymore (I still dont understand why they needed it in the first place). So now mouse is working great now.

Overall it is crazy that customers have to remove stuff from products to make them work better ...

The mouse feels good in my hand and helps reduce my wrist tingling. The sensitivity of the movement of the cursor is accurate. My only peeve is the same one others have pointed out. The buttons by the right thumb are too easy to click. The bottom button is the one I click most often and this is the page back button. Meaning, while I'm in a web page if my thumb hits that button, it's like hitting the back button. I lose whatever I'm doing in that page and goes to the previous web page. This is a known issue with this device but the developers don't think it's a problem. There should be a way to set up the buttons or turn them off, which is what I would prefer. For the price, this is a well made device but the developers should listen to their customers and fix the thumb buttons.

3 stars or 4. Hmmm. I'm confused by this mouse. I have severe shoulder, neck, wrist and finger pain in both hands, and have been forced to more often use my left hand (i'm a righty) just to give the right a break. So I'd prefer to have a lefty option, but that is not available. The major problem i have with regular mice is that my little end fingers try to clutch the mouse to stay in control of it. And mice have gotten so tiny these days that there is too little to grab. I am a woman with a small hand. I think this mouse is made for my size, and seems like it would be difficult for people with larger hands to use comfortably.

As a right handed mouse it doesn't seem to orient to my hand right. If I put the mouse in my hand as shown in the pictures - with my thumb firmly over the thumb area and fingers set about where the buttons are, I have to twist my wrist backwards in order for North South East West to be correct (like move the cursor correctly up, down, left, right). Picture pointing thumb straight out so that it makes a straight line down your arm. Then fingers to backwards to wrap around. That puts a lot of stress on my shoulder and strains through the back of my fingers.

If I rotate the mouse so it's not in exactly the right position on my hand but is in the right place North-South-East-West wise, it sits comfortably under my fingers BUT I can't scroll because the bar is basically where a ring on my middle finger would sit (because it's rotated 45 degrees). Far too low to move my finger to scroll.

If I can find a way to reorient the directional, this mouse would have a lot of potential. It would be a much better mouse and a much more natural position if the pointy end was set to NorthWest instead of due North.

Accuracy wise it seems very good. It's precise, and doesn't skip around like some cheap mice. It auto-detected really fast on both PCs and worked right off the bat. I'm not sure the dpi button is doing anything (on my other mouse it makes the cursor very slow, but I don't see a noticeable difference here). On the mousepad it moves fairly freely, but with just enough friction to allow you to stay in control.

I haven't had it long enough to say if it will help with my pain. I wasn't expecting much out of this, so I'm pleasantly surprised so far.

Keep in mind that with any mouse of any type, if you want any precision you need to steady part of your arm and hand on the desk while mousing. On this mouse your hand sits on the mouse, so for precision I have to lean my forearm or edge of my hand onto the mousepad.

I think this has potential. Worth a try if you have pain.

I have tried Anker and a few other vertical mice.. All of them are horrible compared to J-Tech.
But even J-Tech's has not reached perfection.

Pros:
--excellent button placement! not as hard to click as Anker's
--excellent removable rest pad
--great verticalness--even MORE vertical than Anker. holding position feels like you are grabbing a glass of lemonade

Cons:
--scroll wheel doesnt have a click.. it has an inconsistent texture when scrolling. slightly bothersome when scrolling a lot
--i'd like to be able to remap the dpi button... the past 3 mice ive bought have all had a remapping software with full-fledged macro. but they were not vertical of course.
--it feels a little uncomfortable but i do not feel ANY wrist strain. Despite the comfort, I KNOW that it is good in the long-term to get used to holding the mouse like this.

I can honestly tell you after Anker and cheap $10 vertical mice... this is the best mouse out there right now!

Nice but you can see finger prints smudges

Bought for my Samsung Galaxy Note 4Easy to install, just make sure you clean the surface of your phone properly and have no lint or dust particles on the phone's screen as you are applying the screen protector.2. Very clear, no picture or color distortion through the screen protector3. Most people will complain about the edges not sticking, you can not make a flat hard glass curve at the edges of the slighty curved edge of the Samsung Note 4's screen.Satisfied 3 months later as of writing this review

It's cool because it'll protect my phone but it looks like it fits small, but as long as the main screen is covered the sides would be fine. it was kind of hard to apply, other than that I like it. Hopefully I don't drop my phone :D

This is a nice screen protector and was easy to put on with no bubbles. I would give it 5 stars but it smudges a little when I wipe it off with a soft cloth. I have to use glass cleaner to get it really clean. My last phone had Ghost Armor that I bought at a kiosk at The Mall of Georgia, but they closed. It is about 3 times the cost of this though and looked much more complicated to put on. When the guy put it on it had a ton of bubbles. He said they would come out within a few hours and they did. It wiped off with a soft cloth and was crystal clean. This one is good enough, easy to install yourself and does the job.

Very easy to apply and fit fine but I had the same problem as others with a line across the middle of the screen. I almost returned it a couple times but decided to wait and see if it got better. After about a week the line was gone. It is far from "anti fingerprint" as it says though. In fact it's probably the worst screen protector I've had for showing fingerprints. I do like the way it looks and feels but it must be cleaned constantly to not show prints.

This is the easiest to install screen protector I've ever used, it took almost no effort at all to put it on, and no problems with bubbles at all. Would buy it again if I had another phone in need. The only reason I'm not putting four stars is because it doesn't include instructions at all. Luckily it's easy to install. I hope I never have to test this protector, and I never ever recommend doing tests on durability of screen protectors unless you don't care about the phone.

I really wanted this to be a great product, but in reality, it is just "ok". It fits my hand well and it does provide the relief of having my hand/wrist in a more vertical position as opposed to laying flat. Unfortunately, it fails at some of the basic functions of a mouse. The "mouse feet pads" on the bottom are too thin and have worn down even more in the few months that I have used it. This leads to feeling like I am dragging the plastic body of the mouse over the desktop/mousepad. But, the worst complaint I have is that the thumb buttons (which I use as forward/back) almost always incorrectly register as a double-click instead of single-click. It is extremely annoying and frequently those buttons don't even register any click at all.

I wish I could recommend this mouse, but there has to be better options.

This review comes from my objective opinion of the device. To be clear, I cannot use this!

My inability to use this comes from within, not as a fault of the device. I am simply not able to become comfortable with adjusting my hand position after two decades of using a regular style mouse. It feels really awkward to turn my hand over and I feel a lot less precise using this device.

That being said, it works perfectly as intended. The response is crisp as you would expect from a laser mouse and the buttons all work fine. The placement of the forward/back buttons is pretty awkward if you're used to a traditional placement, but the buttons respond well. It slides across the desk just like any other mouse.

Overall, a great product, but I simply can't get over the radical change in hand position. I'm a gamer, so that colors my judgement quite a bit. Take it for what it's worth.

I bought the mouse almost a half a year ago. It is more or less fine, quite a solid product.

The only problem which is really big for me. I am a Unix software developer. In Unix we have to use a middle button a lot. It works as "paste selection", no copy and paste separately. Even more, Control/C in Unix mostly means "interrupt" not copy. In this mouse middle button is combined with the scroll wheel. At the very beginning I found that for the middle button the pressing effort is slightly higher than it was comfortable to me but later I adjusted to it, mostly. With time I began to hit a problem, duplicate paste. I press one, I hear a single distinct sound, but I got two copies of selection. It happens more and more often, up to 50% cases. It does not depend on the force and speed of pressing, and I found no way of making single paste whatever I do. Sometimes I see three insertions! I cannot bear it.

I tried to contact support. The only way of contacting is to send e-mail to tony@evmouse.com, somewhat weird. I got no response in six days. Registration on site is not smooth either. You cannot resend e-mail, it always fails, but in reality it might send, just went to junk. I got an activation mail in Chinese, just need to click on a big hyperlink in the middle without reading. The web page does not give anything new to solve my problem, no product registration, no in-site mail or other types of contact.

Anyway, I am going to exchange my mouse with somebody who is not a Unix user before buying a mouse of other brand.

This mouse does the job, but it's really big. Meaning, it has a really big footprint. I kept bumping into my computer when trying to move the cursor across the page. I ended up returning it because I felt I wouldn't use it, due to the frustration about its size.

This mouse works very well and turns the wrist to just the right angle. Mine is the wired version and I've had no trouble at all with the cord getting in the way--no complaints. Seller was excellent in product preparation and speed of shipping. After using this mouse for a couple of weeks, I find that it requires a lot of arm movement as opposed to wrist movement and this gets tiring fairly quickly. Therefore, it has very good features but some minuses as well. I'm glad I have it but keep my old standard mouse operational to give myself a break periodically. It is well made and I think some people will be able to adapt to it more easily than I have. One thing that might help would be to have something to support the wrist so that it doesn't drag on the mouse pad during tracking; that tends to wear on the heal of the hand. It's worth a try.

It's weird! I keep knocking it on the floor when reaching for it because decades of flat mouse use have trained me where to reach to I hit the tip often, moving from keyboard to mouse. Moving it left and right is super easy. Moving forward and back OK. Wheel, Front/Back buttons, all good. Design is interesting and lighted area is not too bright (a positive if you've had lit mice that keep you up at night!) Anker's a good brand. Only other thing is pinky doesn't know where to be. Poor pinky...

I received this as a gift from a buddy of mine in 2016. Unfortunately, I forgot exactly when, but it was in the early half of 2016. If there was any paperwork, I've probably lost it by now. I really liked how comfortable this mouse was, but was ultimately disappointed. The cable seemed a little flimsy, but that wasn't such a problem. The worst of it was when, a few months after using it, the scroll wheel became utterly useless. Shortly after that happened, the scroll wheel became hyper-sensitive or something--if I so much as brushed the wheel with my index finger, even left-clicking became a hassle. So, I binned it and went back to my first Anker mouse (which lasted me a little under three years with no real problems).

Looking at some of the other reviews, it may just be that I got one from a bad batch. As you can see, mine matches the old type (pardon the dust, because I've only found time and presence of mind to write a review, now). Given my experiences with Anker, so far, though, I'm definitely willing to give them the benefit of the doubt. The first mouse was pretty good, after all, and the USB hub I picked up still works well, too. I don't expect a replacement, though, given the muddiness of my situation. In the future, I intend to check out the newer--and hopefully improved--version, one way or another.

I have an average size female hand (medium when buying Smartwool gloves). The scroll wheel is a real stretch. If I position my hand so the wheel is comfortable, the forward/back page buttons are awkwardly positioned for my thumb. I tried using it for a while, thinking it might just be an issue of getting used to it. But no. physics trumps all. It's also narrowly shaped, so it's like grabbing a sheaf of paper using my thumb and forefinger. I'm used to using the fatter Etekcity ergonomic mouse and that's much more comfortable to wrap my hand around. The Anker looks good and the smooth rubberized coating feels nice, but it's just not really designed for me. Unless I find another taker with larger mitts, this one's going back.

UPDATE: Anker got in touch and sent me a newer model of this mouse to review. Second mouse is better as it's wider and I don't feel like I need to crab-claw so hard to use. I tried it off and on for several weeks to give it a fair shake. Not a fan of the forward/back buttons placement. They are both located "up" of the thumb, one further away the the other. This means if I want to forward, I have to reach farther with my thumb than if I want to go back in my browser. The placement of the button was a little awkward. When I click use either forward or back button, I squeeze and will frequently accidentally left click. Tried training my hand to brace on the bottom of mouse and the top to avoid this, but ultimately isn't my working style. Gave it to a colleague who is trying it out. Thanks, though, to Anker. Awesome customer service!!

UPDATED BELOW:
Fairly comfortable (though too light, which makes it tend to tip), relieves worst of carpel tunnel, decent texture and scrolling when new. But after having it for a year:

-the scroll is not always responding;
-it takes 30 sec - 1 min to start working after computer sleeps (never had this with any other USB mouse);
-the light on the side is cutting, often flickering;
-the Anker badge is bubbling.

In short, it's poorly made. I'll spring for a better mouse next time.
--------------------------
UPDATE: Apparently, this mouse comes with an 18 month warranty. (I suppose I should have known that.) Manufacturer kindly reached out to me and sent me a replacement. This replacement, so far (about a month), does not display any of the four defects enumerated above. Time will tell how it lasts.

There have been a couple of changes that are noteworthy:

-The light on the side is no longer blue but red. (For me, I'd just assume not have a light, since, as with similar devices, it stays on when your computer is off so long as it's powered -- meaning, bright lights in the room at night.)
-The plastic on the body has a slightly different feel: somewhat softer to touch. I prefer this feel to the previous, and I wonder whether (hope that) it will be more resilient.
-The scroll has slightly less resistance as well.

If, as the manufacturer claims, the prior device was defective and this replacement will last better, then this seems like a great, inexpensive handshake mouse (worthy of a higher ranking). I'll update this review after some time accordingly.

I just got this new Anker. I must say I bought it without much doubt, seeing it had a lot of positive reviews. After a full day of use use though, I am not fully satisfied with my purchase. Here is why:

PROS:
• Design: sleek, elegant.
• Touch feel: comfortable, classy.
• Confort: fits nicely in the hand.
• Tracking: good tracking in both modes.
• Price: for sure, the mouse is good price for quality.
• Solid mouse: the mouse feels robust and has a perfect weigh.

CONS:
• Buttons: this is without any doubt a -1 or -1,5 star. They are, as other said, quite hard to click, which is paradoxical for a mouse that pretends to be ergonomic. Maybe my product has a default, but I had a Logitech mouse before, and I can tell these buttons take nearly double pressure to click. I let you think of all the clicks you do in the day to consider the impact it can have on your muscles over a long-term use. And I know there is a happy middle between too hard and too soft. But considered this problem has been highlighted in a lot of reviews, I wish Anker adressed it.
• Ergonomics: this is a -0,5 or -1 star. Although the mouse feels good in the hand, the angle is maybe not optimal. As others said, it is not a fully vertical mouse. So your hand is always in an in-between position: it doesn't benefit from the full vertical position – where you can relax your arm in a vertical position – nor does it allows your arm and your hand to rest in a flat position – the one you have with normal mice, although this position causes wrist and forearm pains. To add to this problem, I can say after one day of use that I have started feeling a real pain on my ring finger – a pain I have never felt before – that I link to the fact the mouse pushes down your ring finger and pinkie, knowing the mouse is low for people with long fingers/big hands.

OVERALL
I would say price for quality appears to be good. But the product doesn't deliver on its promise according to me. Buttons are way too hard to push and the mouse could be a bit more ergonomic. I wish Anker took into consideration this feedback – knowing I am not the only one to support this view – to make its product better. I haven't tried any other vertical mouse yet. I thought I could fully rely on this buy, but I am now considering moving to Elekcity or even Evoluent.

[EDIT]
After my review, Anker followed up with a customer support email. I must say their support has been very good. I feel like they are really caring about customer satisfaction. So, although this won't change the product and my review, it's really a great plus in their favor compared to other brands.

I really wanted to like this mouse, but it just doesn't work for what I need. I mainly wanted an ergonomic mouse for gaming because using a regular mouse makes my hand sore after a while. The problem with this mouse is that it's just not accurate enough and it's harder to move it quickly, which is really important for gaming. You just don't have the same range of motion with this mouse as you have with a traditional mouse. I also found that while this mouse was more comfortable for my hand, it was uncomfortable in other ways, particularly in how my forearm rests on the edge of the desk. When using a traditional mouse the fleshy under portion of your forearm rests on the desk. With this mouse your arm is in a "hand shake" position, so the bony part of the right side of your forearm rests against the desk. I had to put a wrist pad under my forearm for comfort, but this restricted my movement even more. I think this mouse would be fine for normal computer activities, but it doesn't cut it for gaming.

If I could figure out a way to disable the forward and backward buttons on the thumb side I would give it 4 stars. I don't know that the shape is great, it's just different, and when it comes to repetitive motion injuries (like carpal tunnel syndrome) different is useful. What kills me is when I'm entering data on a form and grab the mouse and accidentally hit the back button. BOOM! All data gone. Start over. Grrrrr.

It only took a short adjustment period to get used to it (other than the forward and back buttons under the thumb). I haven't gotten the DPI button on top to work, but I haven't put serious effort into it. It's ok, but if it died I would replace it with something else.

The first mouse I got the red laser in the base was very, very weak. I had to look carefully inside the laser window on the bottom of the mouse very closely to see that it is barely red.

The mouse was having issues losing communications between the surface of the mouse pad and the laser.

It's a good physical product execution as far as ergonomics go, I can already feel some relief from what was becoming a carpel tunnel issues that was exacerbating weight lifter's elbow. Having the hand in the "handshake", neutral position relieves the constant small amount of tension in the forearm extensor muscles associated with the prone hand position over a mouse.

Nathan at customer service responded to my review here promptly and sent me another mouse, it seems to be working well, and most noticeable, the mouse glides over the mousepad much easier than the first one.

It's a good mouse, but, the position of the thumb, especially for a normal sized male hand is directly between two buttons above the thumb which are the back and forward buttons for the mouse.

When you are working in a smaller mousepad area, (like most workplace situations), and where you are working with multiple screens especially, (like many workplace situations), one must lift the mouse to get full functionality across the screen, and when you lift this mouse the thumb can easily hit the back and forward buttons which is quite frustrating.

An applet should be written to disable these mouse buttons. The mouse is rather heavy, so considerably more force, (although still little force), must be exterted on the mouse to squeeze it so the thumb does not ride up into the back/forward buttons and activate them. This is a tension creation point. If you use the mouse with a completely relaxed hand, your thumb is going to hit those buttons, at least every now and them.

The whole point of an ergonomic mouse is to minimize any clenching or holding of the mouse while operating the mouse so the thumb buttons that are so close to the thumb, and because the thumb must be used to lift the mouse up, that's a subtraction of a star for me. The first mouse being defective is a subtraction as well, so three stars is fair.

I really like the ergonomic design, the handshake position, and the added texturing on the mouse does assist with lifting, but again, the thumb is just too close to the buttons that the thumb can so easily contact when lifting the mouse.

One plus for the design over the other vertical mice is the added palm rest that slides over the mouse surface.

I think there is a period of time in which this mouse must be used to simply develop the muscles and fine dexterity required for the new orientation and I may raise the stars to four if I can get more and more accustomed to the design. But the thumb buttons are still a big issue. Remember, it's a mouse that is supposed to be much, much, much more comfortable to operate than a standard mouse, so the thumb buttons really do hurt the design.

I bought this mouse because I already owned the Anker vertical mouse (2nd edition), but I wanted to see if there were more ergonomic vertical mice on the market. While I like the design paradigm of this mouse better than the Anker mouse, the Anker mouse somehow accomodates for the size of my hand better than this one does (even though the Anker mouse is smaller).

My hand rests on the buttons of this mouse so that the buttons are underneath the knuckle closest to my fingertips, rather than my fingertips themselves. Also, my pinky gets squashed into the rest of my other fingers by the lip on the bottom of the device. The Anker vertical mouse provides more space for my pinky because it doesn't have a lip on the bottom. The Anker mouse's large buttons also accomodate for a range of finger lengths better than this mouse's smaller buttons. Because this mouse is designed for a smaller hand than mine, using it is awkward (and will probably be painful if I use it often enough).

My hand is 7" from base-of-palm to fingertip.

UPDATE 9-14-16: The shape of this mouse is so perfect that I bought a second one, but after using them all day every day for less than a month, I found the switches did not really hold up well. It became harder and harder to get a solid click with a light press. It developed a two-stage click feeling, and when pressing lightly I could feel a click, but that click did nothing. Pressing harder worked fine most of the time, but for me to feel like I was guaranteed a real click, I ended up having to press carefully, at a specific angle, with a very solid press of the finger. And the click did not feel right. It was manageable given how much better my wrist was, but then I got an Anker vertical mouse and the buttons were so amazing that I switched to that. However, I modified the Anker because the shape is not nearly as good. I added a 1/2-inch foam pad to make it wide enough (this helps keep the correct wrist angle). I think this mouse might be fine for people who do not do as much mouse work as I do, and maybe I just got some from a bad batch, so I don't think this is a "bad" mouse it just seems like it would be amazing if the switches were better.

ORIGINAL REVIEW (was 5 stars out of the box):

Great mouse! My wrist is MUCH better!!

I've only been using a few days but I really like this mouse now that I followed Novosib's modification (March 5, 2016) for removing the weights. I also removed the optional palm rest. Without the weights and palm rest, I can make much smaller hand movements and have much better accuracy and speed. I can also pick up the mouse more easily to reposition it.

The problem before was accuracy and speed of positioning the cursor perfectly. I have three 1920x1200 monitors so I need a fast mouse speed setting to move across all that screen real estate, but then I need to put the cursor EXACTLY where I want it once I get there (graphic/web design work).

I think I will become just as fast with this mouse as I am with my regular mouse. I'll try to come back and let everyone know.

NOTE: Since Novosib's review they may have added the optional palm rest, so you need to remove that to see all four screws he talks about. Once you remove the palm rest (just gently pull it straight back) you will find two screws under it. The other two are under the larger stick-on sliders.

I love it without the palm rest and the weights! I'll be buying more of these for sure!

I bought one of these for my Galaxy S4 and it worked perfectly. I really like the look and feel of the product. It feels and looks as good as the screen itself. Unfortunately, the one I bought for my Galaxy S5 didn't work so well. It didn't seal properly in the upper left corner and there is a bubble under the screen protector that will not go away and which is annoying to look at.

So far this screen protector has done just what it said it would do. The claims that it is nearly indestructible are a bit exaggerated though. I have had this for a few months and there are 2 cracks in the screen protector and the sides are chipping away. My phone screen is still in good shape but I have had to order another screen protector. And I have not been dropping my phone or had anything drop on it.

I bought this product because In past i have broken a screen and I though this product was edge to edge of screen but it only cover the screen not edge. It leave gap between screen to white edge.It is fine and clear glass. It is bubble free as claim. YOOYO it is good product but the size is wrong for NOTE 4 is the only issue I had. I would buyother protector for different phone from them.Make sure all the screen size are correct dimension.

Received screen protector very quickly. Good product. My daughter has Galaxy S4. It fits, but not perfectly just a 16th of an inch too long,disappointed, not a big deal; need to get her another phone case to cover the too long protector. The screen protector cracked about a half inch from the too long end, within minutes of putting it on. Well at least she has something over the screen to protect it until we either get another screen protector or new cover.

I purchased two, just in case. The first cover went on perfectly....but had a very small chip in the lower right corner. Drove me crazy, took it off. Re-cleaned and prepped the screen, applied the 2nd cover and the lower right quadrant wouldn't adhere properly. There was a large air pocket under this area and no matter how much I squeezed it away it would reappear as soon as the pressure abated. Giving it three stars because had it not been for the chip in the first cover. I'd quite likely be enjoying my cover.

Applying this product to Verizon S6I personally have no experience applying tempered glass on any device so this is my first timeProFeels really good, just like normal screenCon (reason of 3 stars) Its hard to line up well.There are some verticle pixels on the two sides which are blocked by the sides of tempered glassI can't manage to get rid of side bubbles all around the edge of tempered glass, even though when screen on its not so visible.I think overall I still like normal screen protector instead of tempered glass.

I was really happy with the product when I first got it. It did solve my wrist problem, but opened a door to another problem. After using this mouse for a month I started feeling pain in my fingers. I noticed that im gripping the mouse a little harder because of the shape. This isn't an end all solution mouse.

It was OK. Much better then a normal mouse, but I found cheaper ergo mouses that were much more comfortable. I found that the thumb rest area was odd fitting, but this may be because I have small hands. I found it cumbersome that I could not place my pinky on the desk to help control the mouse movements (this may sound crazy, but you notice these things when sitting at a computer for 8 hours a day). Also, my mouse would not work unless it was plugged into the computer, but this may have just been a faulty mouse. The glowing light looks nice, but overall I was much better off with something cheaper and smaller.

After 2 full months of ownership, the back mouse button switch has already degraded. Clicking it a single time will send 1-3 click messages. Low quality switches in this mouse.

The mouse has a momentary delay intermittently which is very annoying. I did not find it very comfortable. I returned to for the delay.

This is almost a GREAT mouse. The sideways upright buttons help so much for your wrist. The problem is your hand slides off of it. I tried it for a week and it just would not feel comfortable. Your hand struggles and stresses to stay on the mouse that it causes another pain in your hand. If they made the side you grip with rubber or something less slippery and extended the mouse to rest more under your hand - it might have been better. I returned this item. I ordered the J-Tech Digital wired mouse and will try it. It has rubber side and extended under your hand so it seems you won't slip off of it as much. If Anker does a little to fix this mouse - then it would be great!

I didn't realize how much I depended on gravity and the desk being a counter to my button clicks with a standard mouse. The angle is too great on this mouse, so you have to squeeze the mouse to click it. It's possibly perfect if you are a crab.

If you want hand cramps over carpal tunnel then this could be the mouse for you.

Double clicking is bothersome since the mouse tends to slide during the clicks making the computer not recognize the action. Even single clicking doesn't feel precise because of the way the mouse moves with the pressure. (Of course with a "normal" mouse, there is less motion because the movement of the mouse is resisted by whatever surface it is on.) I'm surmising these are general problems with vertical mice. I did not know about these issues or I would have stayed away from getting a vertical mouse. If you are not bothered by these design issues, then the mouse is good.

Not in love with this mouse. I've used vertical mice for many years now and when my DXT started having clicking issues from it's age I tried something new. I have cubital tunnel syndrome - similar to carpal tunnel but in your elbow. This mouse exasperated it to the point where I could not bend my fingers they were in so much pain. I think the issue is the size of the mouse. To use it you have to have a "grip" on it and it's so large for my small hands that it feels like I'm holding something all day as I work. I ended up paying the extra money and going with DXT again and within a few weeks my arm was back to normal.

Not a mouse for everyone. I was looking for a mouse to use since I do CAD design for 8-12 hours a day. While the mouse provides comfort to your wrist due to the angle, I felt the buttons were hard to press. This was more so prevalent when using the scroll/pan wheel. I use the pan feature a lot in CAD, and it becomes tiresome and wearing on your pointer finger due to the angle and pressure needed to press down the scroll wheel. I would recommend the mouse for the average office user but not for someone who uses the pan feature a lot. If they were to revise this so the scroll wheel was easier to press, I would rate it 5 stars. At this point I am considering to return it since I can't use it.

This mouse does not work as well as I had hoped because the scroll wheel starts to malfunction after about a month.I initially bought this mouse to replace my standard, non-ergonomic mouse at my office. After about a month, the scroll wheel began to not function properly; on screen it would scroll in the reverse direction, or get stuck between points and rock up and down without continuing in either direction. This made it extremely difficult to do my work. I thought I had a defective product. J-Tech was gracious enough to replace it in kind free of charge.Using the second product, I had the same grace period of about a month in which I did not experience any problems. Now this mouse is doing the exact same thing the last product did, so I am really disappointed with it.The only good thing I can say, having experienced all of this, is that the customer service department was prompt to respond to my problems with their products. Upon returning the bad mouse free of charge, they provided me a full refund in a timely manner.

I wanted to like this mouse because my classic mouse is causing pain in my forearm, but this mouse isn't the solution. For one thing, the large baseplate produces a lot of friction and makes it hard to move the thing around, regardless of the kind of surface I put it on. I read one review that suggested removing the wrist rest to reduce the surface area, but I figured if I modified it I wouldn't be able to return it, so I didn't try that option.I also found the inability to use finger movements in positioning the mouse made it very difficult to use. Imagine trying to write a letter with a pen gripped in your fist and you'll get what I mean. You could do it, but it would be pretty slow and painfully imprecise. This mouse has many positive reviews so a lot of people seem to be able to make the transition, but I guess I lack the patience to try to get there. I want to put my effort into my work, not to positioning my mouse.

I liked how the mouse felt in my hand, and the concept is spot on, but the execution is not so good.After owning, and using this mouse, for a whole day (GASP), I was not pleased with it.The mouse itself was very light and moved well, but the buttons on the mouse felt very cheap. I'm a PC gamer, and the left click on this mouse was terrible. Each click felt like 3 or 4 clicks, and sometimes it wouldn't register a click or double-click. It also seemed to have that plastic creak to it when using the buttons. It drove me crazy, and I decided not to keep it and return it.

Considering that this is not an expensive mouse, it does the job well to keep your hand in it's natural position when you are handling your mouse for many hours. Here are some ratings from 1-10Fit in the hand: 9 Fits very confortablyRight and left clicks: 10 very responsive and does not take much effort like other miceBack and forward buttons: 2 (I keep clicking the back button accidentally when I grab the mouse so had to disable the buttonPositioning: 8 Takes a bit getting used to as after using a standard mouseScroll Wheel: 0 The scroll wheel is just ok. It does the job but doesn't have the effortless feel of a logitch mouse. This one has an ordinary, cheap mouse feel to it.Update November 5th. 2016. After a very light use, the scroll wheel has stopped working. Never had a mouse "wear out " on me!

I purchased this after reading all the great reviews and was in the market for a new ergonomic mouse that would hopefully alleviate the pain I would get now and then in my wrist due to extended mouse use at work. Unfortunately I don't think it worked for me.Pros:- Vertical mouse feel.- Would work best for medium sized hands.- LightCons:- The construction feels a little too plasticy and cheap.- The surface of the mouse seems to easily sweat up, and although I don't profusely sweat on my palms, the mouse seemed to feel slippery when holding it.- The left and right mouse buttons are oddly placed. It might work for some, but definitely when I rest my hand on the mouse, the buttons are slightly off and I have to tense my hand to keep it right on the buttons.- The scroll wheel is a bit of a stretch when you are using the mouse.- The back and forward buttons are too easy to hit based on your thumb position.Over all I feel more than relaxing your hands, you have to grip the mouse to feel you are in control of it. My search for a good mouse still continues.

April-I had palm and wrist pain and my arm and hand would go to sleep before but now I have no problems. I adapted to the change really well. It did take getting use to, had to slow down a bit while working but after a few days I was using this product as if I always have.This is an update. I started having problems with the mouse not working at times last month and then this month, "June" the mouse completely stopped working. I had to go back to the regular mouse I had on backup and my wrist already hurts. I am totally bummed!Purchased April 2015 and it stopped working June 2015.

I order 2 of these at the same time one for my s5 and one for a galaxy core, the s5 did not come with any instruction and since the core was for some else I did not open it till later and found them. within 2 weeks I notice I the corner was chipped away now today there is a crack in the screen protector. I would not buy again will try a different brand. there as been on unusual usage just normal usage​ no drop just in and out of pocket

Not satisfied. I have placed over 100 screen protectors more than enough experience to do perfect job every time. Peels up on the edges and has bubbles. There was absolutely no error in installation. The product is purely defective.

This was my first tempered glass protector I've ever gotten. My previous flimsy protector was great for over a year and a half but did get a scratch so I decided to give this a try. It did make the screen feel as if there was nothing on it which I liked. But within a year, the top part of the protector started delaminating, causing little shards of glass to fall off. There are also multiple large scratches across the screen now. I will be going back to my old protectors after this. I am extremely careful with my phone. I've had it since the s4 release and never broke it once even though I don't even use a case. I never drop it or even set it down harshly.This type of damage should not happen from light use.

This is a perfect fit for my Galaxy S4. The kit comes with everything needed for application. The screen protector goes on easily and looks great. Just don't drop it!!! This glass screen protector will crack very quickly. The first one I got was cracked when it showed up. The replacement cracked after about 3 weeks on my phone. I'm glad the screen protector is cracked and not the glass on my phone but I would like it to last more than a few weeks. This is a great screen protector if you never drop your phone or have it in a protective case but it will not last against much of an impact.

Very easy to apply. I like that it came with cleaning supplies for your phone screen before application. The only draw back is it doesn't go all the way to the edge of the screen...but the phone case does a pretty good job covering the sides of the phone...little room for dust thoughSo I have had this on for a day now...when I type on my keyboard, where I touch it does not recognize some times...it will press the letter next to what I am trying to type...or make a space in the middle of the word and create a whole new word that isn't even close to what I am trying to say...if that makes sense... taking away 2 stars...just to write this review I had to swipe my unlock screen 5 time before it would recognize my finger

The "glass", if that is what it really is, is just okay.Pros: 1. It has a nice smooth finish. 2. It is clear and it does not hinder the view or picture quality on the phone display. 3. It does NOT scratch. I have had several items come in contact with it in my pocket, and it has survived scratch-free.Cons: The fit. It went on just fine. But around the edges of the protector, once installed, appears to have a "curved" shape. What I mean by this is it appears to have been die-stamped which creates a curvature around the entire piece. So once applied, you can see where this does not fully lay flat around the edges.For what it is, it does the job. At some point, I will search for a protector that lays completely flat on the screen.

The grip on this device is not good. I always feel like it is going to slip out of my hand when I use it. Now, after only three months use, the wheel is clicking like it's showing signs of wear already. Very frustrating.

DO NOT BUY

Mouse works great and feels better than Evoluent. The problem is that it wears pretty quickly. It's been less than a year and it started acting weird. The left button (mostly used) started double clicking itself. Okay, that's fine. Hardwares are expected to break down.

I contacted the company for repair since it is still under warranty, but I haven't heard back from them even after three emails and two weeks waiting.

If you are okay with using it for just one year, go ahead. Otherwise, save your money.

Doesn't ergonomically fit at all. Very uncomfortable.

I had an issue with the mouse skipping. After contacting the seller I discovered that if I turn it off for about 10+ seconds and then turn it back on again it started working well again. However, this appears to not always work. The mouse skips too often for me to use regularly. I'd like to return it to get a replacement or refund.

I design websites for a living so I have Windows, Mac and Linux systems. Mouse works on Windows but not on Mac. I have a sucky Evoluent mouse with intermittent bluetooth problems (drops connections) which I replaced with a USB Chinese knockoff that works well. This mouse does not work on Mac for either bluetooth or corded use. Work on Windows for both. Wasted my money again.

Side buttons are basically useless, and there is no feedback when pressing the dpi button. Apparently, the wireless model has a blinking light to help you figure out what dpi you're in. The position of it also means you click it by accident all the time.

Accuracy is poor, double click doesn't really work.. I bought this a week ago and have already replaced it.

I think the hype reviews are from users who have never used a decent mouse before, or place ergonomic shape above function.

This mouse ended up irritating my wrist because the 'pinch' action that is required to hold your hand o the mouse properly is not ergonomic.

I've only used it for 10 minutes maybe, but it's already hurting the muscles in my hand. My wrist may be better off, but my hand isn't.

After using this mouse for a week, I felt like it actually made my hand felt worse than using a regular mouse. I have used vertical mouses before and loved them, but I had a horrible experience with this mouse. While I saw the reviews saying the buttons were hard to press, the combination of necessary force and the mouse shape/size actually exacerbated the pain. I had high hopes for this mouse, but unfortunately I won't continue using it.

After a few days of use, I already feel some relief from the ugly carpal tunnel pains that were hassling me.

The mouse wheel is a little difficult to press if your hand isn't in the proper vertical position. If you try to push down toward the desk, as I've done several times, it won't click, you have to press the wheel into the mouse itself, which feels strange. That aside, the wheel is just fine. There is a solid tactile feeling when you roll it - as a gamer, that was important to me. The buttons (5+dpi button) all have a nice solid click to them, there's no uncertainty about whether or not you clicked something.

The mouse is a little difficult to pick up when I need to move it back to the middle of the mousepad. It's so smooth that there's nothing to grip onto like a normal mouse. It's also a little on the small side. I have small hands and it fits perfectly but if you have giant paws for hands, you might want to look for something larger.

As a nice perk, it glows blue. I haven't seen a way to turn it off, but I wouldn't turn it off anyway.

All in all, very satisfied. I would recommend it to anyone that wasn't sure about vertical mice but wasn't sure about investing a lot of money.

[UPDATE] - October 1, 2014

The mouse wheel broke during regular use. A part inside snapped and now it isn't slotted in the mechanism that reads wheel rolls. At the same time, something else must have broken because the mouse movement on screen is now jittery and inaccurate. Extremely disappointed, it's essentially unusable. Without the mouse wheel, web browsing becomes physically painful, undermining the whole reason for getting a vertical mouse in the first place. At least the mouse was so cheap that it was pretty much disposable. However, for a product that only lasted roughly three months, even that is inexcusable. Reduced stars from 4 to 1.

For those who move the mouse around, it may not be comfortable as I found I had a hard time lifting the mouse to move it where needed on my dual screen setup. The size was a bit larger than I expected and did not fit in my keyboard tray. (see pictures). Trying to put the cord over the desk since I could not get it in the keyboard tray made the mouse lift at the tip at times as the cord would get hung up. I don't have the option to leave the keyboard tray open indefinitely and run the cord through the keyboard tray, as normal. I also found an ergonomic issue, where my finger had to curl up fairly far in order to move the wheel fully. Compared to my previous mouse (seen in the pictures for comparison where I put my finger at the end of the wheel), it was uncomfortable to use it this way and trying to use the wheel with different fingers did not resolve the problem. I have average size women's hands and it felt too small as I would have liked the wheel further out from my palm. I also ended up hitting the buttons next to the thumb when trying to lift the mouse, which I suppose I could have tried disabling. This mouse was simply not for me.

Big bulky and very hard to use due to very large base I thought this would be comfortable to get my wrist off the mouse pad and onto the mouse however that increased surface area on any surface I tried and caused an increased drag thus causing me to expend more energy on my wrist which I was trying to elevate by using this. Big and heavy lots of surface drag caused excessive wrist pressure to use all day.

Mouse was slow and jerky, and the scroll wheel requires too much lift, putting stress on the back of my wrist. Removed it, and now my old mouse and keyboard barely work. Even system restore didn't fix it. I've uninstalled everything through device manager, and am staggering along, but I think I see a windows re-install in my future.

Revising this review to 1 star. Purchased November 2015. As of August 2016 the mouse is not tracking properly. I have tried cleaning, different mouse pad (surface and color), reinstalling driver, switching USB ports. Nothing helps, so I believe it is the product itself. Less than a year and I need another mouse. Would not purchase again.Original review below.

The buttons on this mouse click effortlessly, which is great on your hands, but makes it easy to click by accident - especially the thumb buttons. The palm rest was so miserable, I took it off after 10 minutes. Right, left, and wheel are fantastic. The wheel bumps as you scroll so it is nice and tactile, and the buttons are very smooth to click. They make the same click sounds as any other mouse. If you have carpal tunnel, this is a fantastic option. HOWEVER, it is so easy to accidentally set off the thumb buttons (backward/forward), it has caused problems for me. According to J-Tech's website/help board, there is currently no way to reassign or disable buttons, so I put a line of super glue along the top ridge of each thumb button so they can no longer depress. Unfortunately, I had to permanently take out half of this product to make it work well for me, and for that reason, it gets 3 stars.

*****
Update: 8/12/15

So I've had this mouse for nearly 4 months and it has broken in the strangest way: One of the springs in the battery housing will no longer hold the battery in place.

I began having issues yesterday. It randomly stopped working. I thought perhaps the batteries were dying. I took the batteries out and put them back in and it worked again. Earlier today it did the same thing. Again, I took the batteries out and it worked. Then just a while ago it happened again. I decided that the batteries were definitely dying. So I took the batteries out, got new batteries, and put them in. When I put the second battery in, it felt loose. I turned the mouse over without replacing the battery cover and one of the batteries fell out. Odd!

I took the batteries out and looked closely at the battery housing. I discovered that one of the springs was completely flattened (see attached photo). I thought perhaps the spring was just caught at an awkward angle so I tried to tease it away from the side. That didn't work. So I got a toothpick and pulled it away from the side. That worked, but imperfectly. The spring is now distorted. I put the batteries in, put the cover back on .... and the mouse doesn't work. I tried opening it up again and ensuring that the spring was in the right place, not touching anything it shouldn't ... but no, the mouse doesn't work.

So while I appreciate the price of the mouse, I do really need it to work.

*****
This is my second vertical mouse. My first one was MUCH more expensive than this (over $100) and was corded. Unfortunately, I have a cat who loves to chew cords - especially the small ones used in electronics and computer peripherals. So she killed my other mouse. I couldn't afford to replace my original vertical mouse and I also knew that she'd chew the cord again, so being wireless was VERY important.

I found this mouse and read the reviews. Some mentioned that it takes a while to get used to. I thought that I wouldn't need to get used to it because I was already accustomed to using a vertical mouse. I was wrong; this mouse does take some times to get used to even if you are already accustomed to using a vertical mouse.

It took me a couple of weeks to get used to the mouse and before I found it to be super easy to use. I do some gaming but mostly web browsing, writing and editing documents. I have arthritis in my hands and the vertical mouse helps me to keep that from becoming too painful.

The wireless connection for this mouse is excellent. It is very small - really just a nub that goes into a USB port. Since it doesn't stick out and doesn't connect to a wire of any kind, it's completely safe from my adorable but frustrating cat.

I highly recommend this mouse for anyone who has arthritis or repetitive motion injuries in their hands. I highly recommend the wireless version for anyone who needs to minimize wires for any reason.

The problem is that this screen protector has a "bubble" around the entire edge, which looks terrible and is ugly. Applied perfectly centered to a clean phone without any fibers or dirt beneath on 1st attempt. But was rewarded with a poorly adhering screen protector that looks like someone attempted to peel the edges up.

Cracked way too easy, within a week. I need a protector which can survive a moderately easy fall, ant this protector does not fit the bill.

Their life time warranty is a sham. When I told them my screen protector broke because of a defect they did not honor their policy. Think twice before you buy this item. I only bought from YooyoTM because I could not find the other carrier of S4 tempered glass screen protector who was better and would replaced my screen protector when it was broken and honored their limited life warranty even after a few months.

I was placing the phone case on the back of my son's Galaxy S5, the tempered glass broke. The Yooyo tempered glass had only been on my son's phone for a few hours. I purchased tempered glass for my Galaxy S5 from another company. I have taken the phone case on and off as needed. The tempered glass on my phone is just fine. I have no idea why this glass cracked so easily. I would not recommend this product.

I ordered this product because of the great reviews. But, my application was not so easy. I cleaned the screen before installing very well, but when I put the screen protector on there were some bubbles. The bubbles are normal, I know, but when I tried to push the bubbles out, the screen cracked in one of the corners. Another big bubble was right in the center and would not come out at all. We tried to re apply it, but there was a dust particle stuck to the adhesive side, despite the fact that I cleaned the screen really well, that would not come off. The screen ended up cracking all the way down, and now it is no good. I wasted my money. :(

I have a s6 edge. This came in and I was so excited, however it didn't cover the edges or line up with my home button and camera hole. I am very disappointed that this protector didn't even work for my phone, I should have just ordered it from at&t instead of trying to save some money. Shipping cost more than the protector and only saved my $3.00 but now that it didn't work out I am going to have to spend $15.00 just to get the right one.