Side by Side Comparison of: Sanwa vs Kensington

I have been using trackballs since my son got me hooked on them about 20 years ago. I had been using the Logitech trackman for the longest time, but they don't make the ones with cords on them anymore. The cordless one has problems. It slows down on me when my computer is doing anything that requires a lot of processing. I took a gamble on this based on other reviews and so far it's working great. It took a little time to adjust to the larger ball and body on this unit, but other than that I just plugged it in and off I went. Logitech made a dumb move by forcing the cordless ones on us and taking away the old fashioned simple plug-in kind. They still make the ones you use with your finger, but who uses those? Get with it, Logitech! I'm so glad Sanwa is making these as nobody else is!

Bought this because Logitech apparently no longer sells a wired version of their thumb-roller trackman and I didn't want/need to deal with headaches from wireless. This is a very serviceable reproduction. We'll see if it lasts 10 years like the one it's replacing, but the build quality seems fine. The only thing I'm missing from my old Logitech is having buttons under the thumb as well as fingers. It's clear from the pictures of the product that's not what you get, but it disrupted my muscle memory for a day or two so I thought it was worth pointing out. The mouse is also very very fast, possibly faster than the Logitech, but since mine is dead, I can't really do a fair comparison. I had to turn the software control for the mouse speed all the way down, and it's still very twitchy. Fantastic for games, but if I'm just poking around a web page I still overshoot my target sometimes. If I were to change anything, it would be to use a matte finish. This is shiny, so it looks like a pile of palm prints.

It's been a while since I had a trackball mouse. Like other reviews, when Logitech gave up making the Trackman Marble (I literally wore 2 of them out), I returned to a standard mouse configuration and missed my track ball enormously. I saw this model here on Amazon the other day and since it resembled my former Logitech, I thought I would try it. I had forgotten how sensitive a trackball can be. I am having to learn how to use one all over again. The ball is extremely sensitive (or maybe it's just me and I've gotten used to a standard mouse), and the ball movement is very very very smooth. You can adjust the sensitivity in Windows to suit your taste. Considering the price of a Logitech Trackman mouse these days, this is a wonderful substitute. Well made and easily cleanable. I can't say too much else as I haven't used it that long, but am happy I bought it as certain mice seem more "comfy" when using certain apps on your computer. I recommend this as a great replacement for something that Logitech made a huge mistake in stopping production of.

The ball motion if very smooth and tracking fast across dual 22" monitors. I eventually adjusted the mouse speed to a bit slower than the default and checked the enhance pointer precision option using the mouse properties from the control panel (Windows 7) but used it with the defaults for over a month. The hand rest is comfortable (larger, female hand), the two buttons are sensitive and the wheel scrolls well. It lacks the paging buttons of the current Trackman Wheel version (not an issue for me as my only use was accidental).After buying several "used" (and expensive) wired Trackman wheels to replace my original, I finally broke down and bought the wireless version and disliked it (as expected). Why Logitech eliminated the wired version from their product line puzzles me (and many others as noted in my quests for a replacement). I can't think of a reason for a stationary trackball to be wireless. After only a year, the wireless version started to need batteries every month and was not tracking well, even after regular cleaning. I was excited to find the Sanwa wired version and more than willing to try it at this price. I am delighted with the purchase and, at my spouse's suggestion, I ordered a second unit as a future replacement.

I was looking for an alternative to Logitech's offering, I see no reason for a trackball to be wireless in a desk environment and I've had issues with the longevity of the logitechs (gone through 3 in two years maybe I'm hard on them.)PROSThe large trackball, even on a lower dpi setting the large trackball has a higher range of movement than other trackballs I've tried. I use 2 monitors at work and can scroll from the left side of one monitor to the right side of the other without having to pick my thumb up off the trackball. The larger range with a larger trackball also means you get better movement for fine details, it doesn't go from 1 to 100 with barely a twitch. The trackball itself is nice an heavy as well and after only about an hour break in session glides smoothly. It feels like a better version of the old red balled Logitecs from the late 90's early 2000.Plug in play is good, even works well with my Thinclient in a VDI environment at work which is really picky about what kinds of interface objects you use, even using the generic drivers it works like a champ.This thing all around is very large, I am 6'2 with slightly bigger hands than most users, and it is quite comfortable. If you have smaller hands you might feel some thumb fatigue compared to other offerings, I'll warn you now.ConsI wish there were at least two more buttons like my Logitech had. And I really hate piano finish on something you have to touch, always ends up feeling oily or has prints on it. but those to me are minor enough that I'm still giving this product 5 stars for the crazy low price alone.

Works perfectly as a replacement for my Logitech T-BB18 trackball (the gray corded one) and my T-BB13 (the even older white one). Only took a couple of days to get used to the buttons being slightly elevated. No problems shifting between the Sansa at home and the Logitech at work. Will get a Sansa for work as well when the Logitech does wear out.Update 1 year later: Trackball still works great with the exception of the scroll wheel. It often registers a lot more scrolling than what I did or in the wrong direction (or worse, oscillates between scrolling the right way and then the wrong way). Most likely a hardware issue as opposed to drivers as I have this problem under Windows and Linux.

My desk has been cluttered with papers since forever. There is no real estate to operate a traditional mouse. Have been using trackballs for over 20 years, most of these with the original Microsoft trackball. Have used this Orbit trackball for almost three years with absolutely no issues. I think the scroll wheel is genius.If the movement gets flakey, just pop out the ball and clean the cavity with compressed air, soft cloth and old tooth brush. Good as new.If you use this device for umpteen hours a day, I strongly suggest placing something under your wrist. Keep your wrist raised to avoid that possibility of Carpal Tunnel Syndrome.

I've been totally happy with this, mainly because I got a trackball I adjusted to very well, FOR A GREAT PRICE.Otherwise it has a wire and so I have to be mindful of that. But it's not like having a wired mouse wishing it was wireless. A trackball usually sits in the same position anyway. The wireless tracballs are considerably more expensive. Plus this was an experiment for me to see if I'd like it and so I was reluctant to pay too much. In the future I'll be inclined to pay much more for a great wireless. This one egonomically is a tad odd too. But still and all, I'm delighted, the trackball experience is what I had hope it would be.Peace to all

I got this to replace my old track ball same model that was 2 years old. It still works but silly me got a little to aggressive cleaning out the dust and flicked the little steal ball out (which got lost) and it didn't move as smooth with out the little steal ball. works for gaming and editing photos and even drawing. I have recommended for people with decreased dexterity in hands and they love it also. Takes less space and no wrist or kneck issues. Scroll wheel a must have.

It is inexpensive but works well. I have owned higher-end Kensington products and was looking for the scroll functionality this has. I have a montage of mice/trackballs on my desk that are connected to various computers. I find myself using this trackball often. I am happy with the purchase.I use this for general "office" work, and some basic graphic design and movie editing. I had to up the default scroll speed for it to seem "natural," but that is not surprising. The scroll wheel works very well and seems very natural.This is a minor point: It does not respond at all if you quickly spin the trackball so that it "free-wheels" for a few seconds and then spins to a stop. However, at "normal" speeds it works fine. This isn't a big deal. It is just a feature I could use.Overall, it does not feel very heavy/sturdy, but it also doesn't feel fragile (sorry if that does not make sense). It does not seem as solid as other high-end devices, but it is also a lot cheaper. I'm not a huge fan of the wrist-pad. I rarely use it, but that is just personal preference.

As a person who writes daily at the computer, good ergonomics are important for me to prevent repetitive stress injuries. One of my ergo tactics is using a trackball, so that I don't have to grip a mouse and create additional stress on my forearm and fingers. With just a little practice, using a trackball is very comfortable -- just roll your fingers with an open hand over the ball, and tap the buttons on the side to left or right click.I've been a big fan of the Logitech Trackman Marble Mouse for years, and have purchased half a dozen for various computers I've worked on. But with my latest job and the computer my employer loaned me (Lenovo with Pentium Core i5 and Windows 10), I found that my venerable Trackman didn't give me precise enough control. Trying to grab and highlight words for cutting and pasting was so difficult, it was giving me the yips. Exasperated, I went back to using a mouse and looked for a better trackball.The Kensington Orbit Trackball Mouse with Scroll was my first choice, and it turned out to be the right one. The device enables smooth and precise mouse pointer movements. The scroll ring is a nice feature unique to this device that turns smoothly and is easy to use. It comes with an attachable soft plastic palm rest that makes it feel like the Logitech Trackman Marble Mouse. And the price is right. It works better than the previous Kensington trackball I had (the one with the gray ball), so I'm very happy.

I've used trackball mice for over a decade now, but always ran into the issue of not having the same features that many other modern mice had - additional buttons, scroll wheels, etc. This mouse by Kensington solves all these issues. I finally get the fine and easy movement of a trackball and the additional benefit of a scroll wheel - which is important in some software/games that do not allow key-binding for scroll in/out features. In fact, I purchased this mouse after I realized I couldn't zoom in/out on a particular game I was playing - and that key-binding wasn't an option.The mouse is slightly larger/wider than my original trackball mouse, made by Logitech, but I find it more comfortable for long term use - as my hand can rest on the entire mouse instead of "wrapped" around it. Additionally, the add-on "extension" that attaches to the bottom of the mouse gives my palm more room to rest. The trackball is very responsive and I have not found any "tracking" glitches thus far - which is likely due to the accurate laser used to track the movement of the ball. And for those worried about installing third party software/junkware - this mouse is plug-n-play. No software required for my Win7 machine to correctly map and configure itself for all the functions of this mouse.My only complaint - and it is minor - is that when I get too lazy and allow my hand to simply sit on the base, I sometimes hit the scroll-wheel (gray ring around the blue trackball), which makes my document scroll or my view to change in games. Is this a big problem? No. Is it annoying? Yes, but only because I know it is my fault for getting lazy and letting my hand simply lay flat on the device.The only thing that would make this device even better - adding in some programmable buttons along the base (possibly front) that would give the user access to "quick buttons" in software and games. Otherwise, I absolutely find this trackball mouse to be my favorite to-date.

I'm extremely happy with this trackball, it's a true replacement for my old wired Logitech.I have an iogear four port KVM switch, that the wired Logitech worked well with. When its scroll wheel finally wore out I went on a hunt for a replacement. The wireless Logitech didn't work, nor did a subsequent series of others including an Elcomm. Finally, I found a working trackball in the form of this Sanwa that functions perfectly with the iogear KVM switch.I can only ding it on one thing, the mouse is very touchy. Just a small movement has it flying across the screen. Of course this is easy enough to correct by going into the control panel and adjusting mouse sensitivity, only drawback is when I take my laptop elsewhere and use it with a different mouse I again have to adjust the mouse settings for that other mouse, then readjust back to the Sanwa when I get home.However, that is a small price to pay for finally having a trackball that works with my KVM.I'll also mention the mouse is slightly larger than the Logitech, but not by a whole lot and with my big hands it feels good.

I had to replace my old Dell mouse that I had been using for almost a decade when the right button finally gave up the ghost. I had purchased another mouse from Amazon for $10.00 and it was the worst crap I ever had.I then recalled that my Mother used to have a Microsoft trackball that was really amazing. Color me surprised when it looked like trackball mice prices were going through the roof. I mean, what the hell?That was when I noticed that Sanwa sold a trackball mouse at a very affordable price. For those of you who don't know, Sanwa is also well known for making quality, affordable arcade parts and accessories. As a matter of fact, I use several of their products in my MAME Arcade Cabinet.I decided to give them a shot and I just got the mouse today. It felt a little light, to be honest, but it works like a charm. As a matter of fact, it works a little TOO well. The mouse pointer on my screen is moving at three times the normal speed I was used to, the general build quality and latency is actually amazing on this mouse. If it can last half as long as my Dell mouse, it's perfect.I was a little disappointed with the mouse when I first got my hands on the package, because it looked like it didn't have the cool, neon red ring around the trackball like my older mouse used to have. But once I plugged it in, it lit up like a Christmas tree light, looks very cool, but it also has a sort of "sleep mode" where the color dims so that it's not so bright it'd wake you up.Edit: it's been a few weeks and the mouse is holding up "okay" I say okay because last week I had an issue with the right button sticking. I had to pull it up and clean under it. The thing is, I've had some PC mice that lasted a decade before this was a problem, as a result I'm docking this mouse a star.

First the trackball does work. I Love trackballs so am glad to see one at a reasonable price. The wireless one from Logitech has issues. Still, there are a few things that could be improved on this one. One, the cord comes out at the top of the unit so it keeps wanting to turn sideways toward the cord. The logitech one comes out the side. Second, the manual is in Japanese, but you can adjust the sensitivity using the windows control panel. Third, the cord is a tad too short for my set u, another 10 inches longer would have been perfect. Over-all tho I am glad to see someone besides logitech putting out a trackball. I'll use it.

UPDATE - this is still a viable replacement for my old corded Logitech trackball but after using it heavily for a week or so, have knocked it down a star. The trackball hesitates when you first start to move it so precision is low until you get it moving. That may be due to its size. The ball is considerably larger than my Logitech. The mouse buttons are really sensitive. Still not used to them. I may take it apart to see if springs can be substituted or adjusted for a firmer touch. Lastly, the enclosed manual is in Japanese or Chinese. Good thing I didn't need it to get up and running. All that said, I still like the device.-----------------------I have been using a Logitech trackball for over 10 years and up until now have been using the first corded ones I bought. A year or two ago I bought the new wireless one because a corded replacement wasn't available at a reasonable price. I felt it had lesser build quality and I had issues with communication interference as the device would suddenly freeze and then resume after a moderate wait. When I saw this one, I jumped at the chance. I have only using it for a day now but I like it. The build quality is great and it feels more solid than my previous ones. The flatter design fits my hand better and the unit seems to be much more precise than the others I own. I will say there is a learning curve with this one. It took me a bit to get the pointer speed down to a level I prefer. It installs with a high pointer speed. The buttons don't have as much resistance as the others, so need to be careful on the amount of pressure when resting my fingers or getting ready to click. I will give this another week or so to make sure but honestly feel I will be buying another one for my laptop before Christmas, just over 3 weeks from now.

1, picture is wrong. mine is mirror finish, not matte. 2, shipping fast as hell. ordered some stok coffee shots in same amazon order on aug 8th. got to my front door at 11am on 14th of aug with the free shipping amazon option. 3, it IS about 25% larger than the Logitech Trackman ball. i own one, also... like a previous reviewer... left click on my Trackman is going bad. 4, SANWA tracball IS loose/wobbly, makes a lil gurrr dragging noise now and again fresh out of the box. 5, installation. ALL INSTRUCTIONS ARE IN KANJI! the lil booklet has a few words like Windows, Mac, etc. but the rest is kanji. ie Chinese, Japanese, :) for those who don't know. i've got a windows 7 home laptop. the SANWA was USB plug n play. Windows Update did it all for me. easy peasy. all u need is internet connection. :) no menus, no setups, no wizards, nothing. 6, left right clickers crisp, 'click' from buttons isn't loud atall. those who have/had a Trackman, remember the clunkclunk clicking from the 3rd button for webpage up down scrolling? SANWA's 3rd button is silent while rolling. DOES click down to drag/scroll with cursor. 7, sensitivity, YES! the SANWA will zoom your cursor around like mad. but if you're a tracball veteran, you know how to fix that, in settings, or just use the ball of your thumbpad instead of tip of thumb and "wiggle" cursor across screen more carefully. 8, ergonomics. i have tiny hands. less than a size 8 glove. SANWA fits my entire hand! from base of thumb and wrist to well past my middle fingertip. my thumb can easily rest off the trackball to it's left. SANWA's arch along proximal knuckles of hand(first set of knuckles) is INSANELY lower than that on old Logitech Trackman. width, my pinky finger always hung off and rubbed on the tabletop of my Trackman. not so with the SANWA. a clasp/grasp equivalency? B cup breast, or holding a large grapefruit in your palm. i like it so far.

There are few options these days for a wired trackball/mouse. I still use some beloved Microsoft Trackball Explorers but the prices for these are obscenely expensive. Logitech's Marble Mouse is good option for left&right handed use where Sanawa is right hand only. I have not tried any of the Kingston brand yet.Under Linux the mouse speed is way too fast and I had to edit some parameters to slow it down to a normal speed. This is easily adjusted in OSX or Windows settings. The fit is good for my hand and the wheel makes for quick up/down scrolling. Glossy finish looks good but is a bit slippery sometimes.As noted by other reviewers there are no English instructions. I found a web page that has them and was happy to see the ability to change resolution by.."800 / 400 count switch:Use cursor speed 800 count, 400 count selectable. Switch is a simple switch push wheel button and the right button at the same time."Seems to be well built and should last a long time but if you like it you may want to buy 2 and keep one as a spare. No telling who will be making wired trackball mice next year.

I have a mouse-intensive clerical job, and this is one of three mice I rotate through-- no particular mouse can solve the problem of repetitive use, so I find it best to switch to something different several times a week. I love the scroll ring on this one and the track ball works fine, but clicking is slightly awkward--you either have to roll the trackball with your first two fingers and click with your thumb, or roll the trackball with your middle finger so you can click as usual with index finger. If you don't need to click frequently (and by that I mean I click at least half a dozen times a minute for hours every work day), this would be a great mouse. It isn't my favorite (oddly enough, just a plain old Logitech 2-button mouse with scroll wheel has ended up being my favorite), but it serves the purpose of having a different set of motions.

I think I made the right purchase - I was replacing a wornout unit.You NEED to get the right driver and then use the custom setup panel to reduce the sensitivity or you will think you need to lay off coffee for a week. It is far too sensitive with Win10 drivers.After fixing that, it has been great. Only reason for a 4 versus a 5 is that I really prefer a larger trackball - but those are almost impossible to find in optical trackballs. The scroll ring is fine too, although my personal preference would be to have to the "ring" wider - so that it overhangs the black part a bit more. It would be slightly easier to control.

A little less than two years ago I bought one of these as an experiment.I wanted to see how well it compared to my personal favorite the Trackman Marble.I do a lot of gaming and other work on my computer so I wanted to see how it would hold up.I quickly determined that this thing has some problems that make it not great for gaming but perfect for my work computer.The good:This thing has the best scroll wheel I have ever used! It's fantastic. It is much more forgiving than a Trackman using macros to simulate a scroll wheel, and it's able to clip along much faster than a standard mouse.If all you are doing is using your computer for documents/coding/work, then I highly recommend this product.The bad:It's not the most ergonomic trackball out there. The buttons sit a just to shallow an angle to be comfortable, especially with the amount of pressure you have to use to click the button. However, I use this thing 8 hours a day, 5 days a week and got used to it.My first one broke after a little less than two years. The click detection became unreliable and it consistently failed at dragging and dropping. But that's about the average life expectancy I have for any $20-$30 dollar trackball.

I love the scroll ring. I don't like the small size of the actual trackball. And I don't like that it's wired -- I didn't realize how difficult it is to find wireless or larger trackballs these days. The small ball -- about the size of a ping-pong ball -- negatively effects my pointing precision. UPDATE: After using this mouse for awhile, Ive actually grown quite fond of it... so much so that I will soon be purchasing a second one, as I seem to have worn out the right click button. I am addicted to the scroll ring, and am still frustrated at the lack of finger-controlled, LARGER trackballs available.

You MUST download Trackball Works 2.0 of Kensington's website if this won't work with your computer. It DOESN'T COME with the equipment. I got this to bridge the gap while I waited for my Kensington Expert replacement mouse to come on warranty. I then put it on my Dell laptop with Windows 7 Pro on it. I didn't even need to download Trackball Works 2.0 to get it to run though that is good idea on desktops. With laptops it (Trackball works) might conflict with the driver on your touchpad but use it for desktop models because it gives you a lot more controls of sensitivity. This is a nice, lightweight trackball with a good scroll ring and two buttons. The ball stays in unless you press gently on the hole in the bottom and it pops out for cleaning the inside which will get dirty and degrade the performance eventually. I put clear tape over the plate that has the serial number on the bottom so it won't rub off. You must have that AND the receipt for warranty service. They will replace your mouse on warranty WITHOUT shipping it back to them (I did it with the Expert mouse) for free if you send them the receipt (I scanned it and emailed to them). Amazon allows you to download and print it any time if you buy it here but someone might read this who bought it elsewhere. Keep your receipt! I use the trackball off the table/shelf/laptop so I don't put pressure on my bad carpal tunnel wrist. It works great. That is much harder on the equipment because it gets dropped and cables twisted than tabletop use. That is where Kensington products shine! With the good warranty service and great function I gave this mouse/trackball a 4 rating. I didn't give a 5 because like all trackball using it in your lap means the cord where it meets the unit the connection goes bad. Logitechs' die at about 3 to 4 months and warranty service in the past is a joke. I avoid them now like the plague. The paper that came in the trackball/mouse said 3 years warranty but the one here on Amazon says one. If it dies and I remember I'll try and update here on the warranty service.

I'm a writer of fiction so I'm constantly scrolling back through lines and paragraphs to check continuity. My old Logitech with the scroll wheel finally gave up the ghost after many years. Seems they only make the cordless version now but I don't want a cordless mouse. Just a matter of personal preference. So I bought the Orbit. I'm using it on an old bulletproof R52 ThinkPad running Windows 7. Plugged the orbit in and worked immediately. The good news is the cursor really flies over the page. The ball works smoothly. The ring works smoothly as well. No drag. But, the ring has a little "lag". It moves maybe 1/8" before the cursor moves. The Logitech scroll wheel moved the page immediately. No hesitation. Usually I only have to go back three or four lines. I don't know if I'm going to get used to the lag in the ring or if it's going to annoy me. It's a little thing but very often it's those little things that bug you.********************I've used this for a few days and if anybody at Kensington cares, I'll offer a couple of suggestions. The buttons need to stick up above the surface, like the Logitech Trackman. The form is too squashed flat. Too wide. It needs to be narrower and higher. The ring needs detents or some resistance. The Logitech has the scrolling wheel with tiny detents. I could move up and down a line at a time. The skittish ring on the Orbit has me constantly "overshooting the runway". I think it's the lag in the ring that makes for the imprecise scrolling. This is a big deal for me because I spend several hours a day writing. It's not a bad mouse for the money, it's just not as good as my old - and apparently, obsolete - Logitech with the scrolling wheel.

I've bought 2 of these. At first I liked it so much I bought a second one. The trackball itself is fine, and I like the large size of it. Cleaning the ball isn't a problem, and it doesn't clog with dirt the way older Logitech designs did. It's very comfortable, and the sensor is very precise - you'll likely need to adjust your mouse sensitivity down quite a bit compared to other pointing tools.The main problem I have is that the scroll wheel starts to fail after about a month. The clicks on it are tiny and imprecise, but after a bit of use the sensor stops registering each click, and sometimes even registers one in the wrong direction! It's still mostly usable for web pages, but forget trying to use it in a game or anything which requires precision.Again, good ergonomics, but the scrollwheel is almost useless.

I've been using this for several months now and it's just your average trackball. The movement is smooth and it doesn't seem to attract as much gunk as the logitech I had previously. The right button seems to have a hair trigger and can be a bit of a nuisance but I have gotten used to it. The piano gloss black finish is nice at first but actually tends to show prints and general gunk more than I expected.Overall a decent piece of hardware but I wouldn't buy it at a higher price.

I could only give SANWA SUPPLY PC Trackball Mouse USB MA-TB39 Black 3 stars and would have given less if it didn't work as well as it has. The reason I gave it a low score is that after a while of use my elbow has started shrieking at me in pain. I had placed this in the exact same spot as I had my logitech and microsoft trackballs and never had a problem with those. I even moved this one and while it alleviated some of the pain it is still there. The shape of this trackball just causes me to contort my hand and arm causing use of it to give pain in my elbow.I am going to need to get a different trackball because this one is not working out for me at all. I think I will be getting the ELECOM Mouse trackball wired grip 6 button black M-XT3URBK as it seems to be in the same classic shape as the logitech and microsoft trackballs and has good reviews. I won't be going for another logitech trackball as their button are crap. I purchased one of the wireless 570's and within a few months the left mouse button started giving me problems. I got a replacement from logitech and within months the replacement was doing the same thing. Also, I hate the wireless ones. It stays in one spot so wires are meaningless on it for me but the wireless ones use batteries. I like to keep as much crap out of dumps and such so battery powered devices that are perfectly fine wired are extremely annoying especially when they stopped making a wired version that worked perfectly for years.

Please do mot get me wrong the delivery was exhalant and the unit works as it is designed to and maybe once I get some use time with it I may give it 5 stars but I have been using a wired Logitech Trackman for 10 years or more; it has a smaller ball and base so I find this Logitech almost like an extension of my hand. With the Trackball Mouse from Sanwa being larger does not fit my hand as well (My hand is between a medium and large) also because the ball is larger one roll of the ball from one point to the furthest point will send the cursor from one side of the screen beyond the other side of the screen and I have a 27 inch 2560 by1440 resolution Professional monitor the Logitech would take point to point 3 1/2 rolls of the ball to go from one side to the other and because I am used to this it seems more precise to me for fine selections but this 3 and 1/2 rolls of the ball drives some people crazy and would like the faster movement that this unit provides. But don't get me wrong that does not mean that this unit cannot be precise in its selections but one would need to get familiar and comfortable with the difference if they are going from a Logitech (no longer available) to this unit

This trackball is larger than most and fits the hand well. However, the ball motion is a bit sticky, especially for the first few weeks. It acts as if there are rough spots in the ball holder that make the cursor movement a bit unpredictable and sometimes very stiff. This seems to be getting better as time goes on but has not yet worked itself out completely.

I got this to replace my aging Trackman Wheel due to Logitech discontinuing wired variants. This unit, however, feels quite awkward. It slopes down drastically near where the palm rests and it's not as rounded as I expected. The palm lays much flatter on this than the Trackman Wheel. I'd put up with that, but the tracking mechanism for the ball is off it "wobbles" in the values reported to the computer, so a relatively straight movement makes the cursor zig-zag back and forth across the track. -- after seeing a light go on inside (presumably to allow the CCD or whatever to better identify the black dots on the ball), I tried moving the ball slowly at a pace that will keep the light on. It wasn't a startup-delay, the wobbling motion continued. Fine adjustment with this appears difficult, even with the cursor at low sensitivity due to this.

I do a lot of detail work with AutoCAD and Photoshop and I was have bad back pain from my back tension from drag and drop. This TOTALLY cured that. It's perfect for surfing the web, the scroll wheel is great. However, it's not precise enough for the detail work I do, it takes me longer to do work, it's very hard to get it to stop exactly on small items as a regular mouse. The wrist rest is useless if it's not on a desk, it doesn't really attach it's made for a large hand so the wrist angle without it is pretty harsh. I bought the track man marble from Logitech to use at work and it is more precise but does not have the scroll wheel. I'm still looking for the perfect mouse.

Trackball takes some time to break in. - not that big a deal. Scroll ring works well. The wrist rest is a MUST bringing the total length to about 8 & 1/2 inches. I tried using the TrackballWorks software to slow down the mouse movement, but they only allow Ctrl, Alt, & Shift as keys to use. Will try to find (or develop) 3rd party software to do this for me, because those keys sometimes modify your clicks as well. I wish it had a "sniping" button that would slow down movement or at least a middle click at the bottom of the scroll ring. I think that would be the perfect place for such a button. That being said, It is hard to add more buttons, and still make it ambidextrous. Overall It's okay. I got it at $18 after seeing it on sale for $15. Truly, I think that is all it is worth, but I am a poor college student, so I may be a little biased...

Eh. It works well, certainly, and is both solidly constructed and inexpensive, but I found it to be pretty uncomfortable, so I stopped using it after a few months, and caved and bought the more expensive apple magic trackpad, which is just so much better and more comfortable.In my opinion this actually hurts your wrist more than a standard mouse even, just because of the place you rest your hand way pretty uncomfortable and unnatural, which kind of defeats the purpose of buying a trackball.I'd skip this one, but it is cheap, so you might want to try it and see if you like it.

If you have a large this will fit it well. The mouse buttons are too far forward for real comfort, but the collar scrolling wheel part is easy to use. Both in this house, the big handed (who is using it) and the small handed (who finds it awkward to use - buttons definitely too far forward, too big, too 'tall' and too short in the back) agree, a ball mouse is a very careful fit to be comfortable, and both agree the mousing buttons could be a little farther back for real ease of use.The other ball mouse in the house is a Logitech with no scroll wheel, but is longer, lower and has the mouse buttons farther back. The large hand finds it too flat and too narrow between the buttons to comfortably use thumb and little finger. The small handed person finds it fits perfect with the cup of palm on the back, three fingers for mousing with the ball and thumb and little finger easily reaching the mouse buttons.If you must have a scrollwheel, this one is easy to use. If you have a large hand, this one fits much better. It could still use the mouse buttons to be longer (reach farther back) or be set back a little further. Smooth operation though. Will update on how it holds up.

I purchased mine used from Amazon warehouse. It looks brand new and was in the package but it arrived filthy. After cleaning it up I gave it a try. I've used these types of mouse's before and love them. However this one is not designed the same way, instead of using your thumb to maneuver the ball you use your fingers. I fear there will be a small learning curve in order to get used to it, although my first impressions are, it's not too comfortable, compared to the one that you maneuver with your thumb. I definitely like the scrolling wheel. However, all in all I would not recommend this product. Personally I would spend a little more next time and get the one that is maneuvered by the thumb instead.

Arrived promptly, no issues. Well packaged.First impression. This thing is humongous.Attached easily, computer recognized immediately and it began downloading software to my computer.I have a Lenovo computer with Windows 8. There is some sort of compatibility issue between this computer and the trackball. I get page jumps, the cursor is nervous, I get black and blue boxes that blank out parts of the screen, the copy and paste feature only works part of the time and sometimes the right click button will not work at all. These issues were so persistent, I found it difficult to type a short email.The unit is flat and slick. I cannot grasp it to click the buttons. My fingers slide up the sides. The ball is very sensitive and glides smoothly. The scroll ring is by far the best feature. Scrolling is effortless and comfortable.On an older computer running XP, it works perfectly. However, I do not need it for the older computer.Since I must return it, I will ask for a refund and select a smaller device. I had no idea the trackball was so big. If you are accustomed to small mice or trackballs, you may have difficulty using the Kensington. If you have Windows 8 or a Lenovo computer, you may wish to investigate compatibility issues before ordering.If you have trouble viewing the video, click Full Screen in the lower right corner after the video starts. It looks like an X.

Worked well for about three months. Then the solid-state sensor that they decided to use for the mouse wheel started to go bad. I might be able to get another month out of it, but $120 a year for a controller is not my idea of a bargain. Especially when my Trackman lasted eight or nine years each.

after using this for several weeks have decided to return it due to pain in thumb from stress caused by oversized marble Using it turned into a nightmare because of it extreme large size if you have HUGE hands this may be a good one for you but if your hands are average DO NOT purchase this product ONLY good thing about this product is that it is corded

Worked great upon arrival. However it has a major flaw in it's design. The track ball does not come out of the mouse without taking it apart. Thus it's impossible to clean the area where the ball sits. Crap slows accumulates there and the ball gets sticky. I took it apart to clean it out and if you don't put it back together EXACTLY right then it's impossible to use. Very difficult to reassemble correctly, took a long time.

I've used a variety of trackballs since the early 1990's. Some performed better than others where others failed miserably. That being said, I expect the build quality and ease of use to meet, or exceed that of what I've experienced from the "L" brand.I appreciate the wide array of colors Sanwa has to offer. It's nice to see a new name entering the industry. Trackballs have always poorly supported by more than a couple companies. Perhaps this in itself is a good thing. While I wanted this Sanwa brand trackball to be everything that it's competitor is, sadly it is not.- Build quality feels incredibly cheap. It feels like the plastic is incredibly thin and feels as though it could be easily cracked or at least bowed.- Ergonomics are simply not as refined as other brands that have been around for some time. The Sanwa trackball feels flat, and does not conform to the natural curvature of the palm.- Ball motion was very hindered. Rather than being smooth and free-moving, it is constrained and bumpy.- It feels very oversized. Considering this is a product from a Japanese company, manufactured in China, you might think the device would be undersized. Apparently, Sanwa believes Americans have gorilla-sized mitts.Hopefully these issues will be addressed and the product refined.

It was great at first. I thought I was in love. I adjusted to it pretty rapidly after using M570s for years.It took a long time to arrive but it was within the extreme window.After 5 or 6 weeks of use, I began to notice issues with scrolling. It seems I'm scrolling up when I should be scrolling down and it jumps around and adjusting settings does not seem to help. It also seems to get worse.It has gotten to the point now that, despite preferring the SANWA and especially the ball action and moving the cursor around and basically everything other than the scrolling issue, I have gone back to using the M570s I bought it to try / replace. It is not pleasant dragging the cursor across the window with the M570 after enjoying the SANWA, I'll tell you.Oh well. If anyone has any suggestions what can be done about the scrolling issue, I'd love to hear. It is basically useless to me since it refuses to scroll properly.

I was hoping for a unit that was like the wired Logitech trackball to get back the responsiveness I desired. The wireless units just weren't doing it for me. This guy is just too slippery and doesn't feel good in my hand.The people that still have the wired Logitech units for sale are asking a premium for them now.

Returned. Did not work well with Win10. Worked fine until I downloaded the software that comes with it. It started randomly clicking on things that I didn't even know I had on my computer. Customer service had me upload and download stuff until I felt like I worked for Microsoft. In Kensington's defense, since the "Creator's update" on Win10, hardly anything that isn't MS has worked well, if at all (Apache Open Office, Libre, etc.) I purchased this due to the fact that I had hand surgery and needed to reverse the mouse buttons, which I could not do on my current trackball. It has the same issue- works fine until I try to install their software. The Kensington trackball is optical and very smooth rolling and I really liked the scroll device, which looks a little awkward but is actually very intuitive. I'm sorry that this didn't work out.

Uncomfortable for me. I prefer a trackball to a mouse and for years used a different manufacturer's model that is no longer available. I have tried several different designs by several different manufacturers with the now common "ball between the buttons" layout and have not found any of them to my liking. On this one I frequently had to press the buttons multiple times before getting a response. The need to download software and press both buttons in order to drag an object seemed to be unnecessary. The scroll ring is a nice touch, however. It looks like I'll be using a mouse from now on.

It's really not ergonomic at all -- I like to switch between left- and right-handed use so the options were limited, but it's actually easier to use my right-handed Logitech left-handed than to use this thing. The clicking is awkward and I miss the back-forward keys. I did end up keeping it because it was getting close to the end of the return window before I decided my hand was never going to adapt, and it is sort of useful for scrolling left-handed if I am eating something messy with my right hand.

The left button is too far away for my stubby thumb and requires too much force to click. The scroll wheel is nice and the stickiness of the ball went away after about a minute of spinning in different directions.

If you are coming from normal mouse, it takes a little getting used to trackball mice but once you get a hang of it, it saves desk space and it is faster for browsing the web though it is a bit more complicated to use for spreadsheets and image editing where precision is more important. Anyway, after a few months of light, daily use, the right click button just stopped working. left click works fine, scroll ring and trackball (surprisingly easy to clean) all still working fine. I tried to plug the mouse to different computers, update drivers, still no luck! I searched online and it seems that its a common problem with this mouse and no customer care feedback is received; so I am back to using my notebooks right click button for now. Overall, It is still an 'okay' mouse to try trackball considering the price-point vs investing on the more expensive models.PS. LG offers also a trackball mouse. try that. I bought this to try the brand and while I still want a trackball mouse for use, it wouldn't be kensington.

I have had a $25 Logitech marble trackball for about four years and love it. I wanted a second trackball to take with me on a one-month-long business trip and thought the Kensington -- with a scroll! -- would be good. It's very well made, works smoothly.But it is way too big for my hand, which must be splayed out to use it whereas my hand cups around the Logitech very comfortably. I also was shocked to discover no back button on the Kensington -- seems odd. I did try hitting various parts of the buttons, but found no way to go back with a button.The Kensington is headed for Goodwill. Perhaps some large-handed person who never wants to go back will love it.

I bought this to replace my Logitech Trackman Wheel, which has unfortunately developed a flaky left click.It seemed like a good replacement. The wheel movement is very smooth, and I can move the cursor from one side of the screen to the other with little effort. All in all, it seemed like a worthy successor to my old Trackman.So why only one star? The ball abruptly quit working after about two or three hours of use. The sensor seems to have failed, since there was a visible red light when it was working. I'll be returning it for a refund. I don't know if I'll try again with this brand. I just wish Logitech hadn't discontinued my old mouse.

My goodness the price on these shot up fast. Unfortunately the quality does not deserve it. The right mouse button was too easily depressed, but I managed to fix that by stuffing a silicone washer underneath it. The real problem is the main functionality of any mouse; to move the cursor. It is near to impossible to use this mouse for anything at any level of precision. Something in the works causes the ball to be very scratchy, something other reviewers have commented on. I tried cleaning the ball, I tried cleaning the cavity, I tried oiling, I even tried sanding the ball smooth. Nothing worked! I wanted to love this mouse but in the end it was only suitable for the garbage can.

Have an old Logitech trackball. Still works, but it's heavily worn out after about 20 years of use and several repairs. Bought this in Dec 2015 as a replacement, worked great. Ball doesn't pop out for cleaning like the Logitech, and it does stick every once in awhile, but can be cleared. Then at 8 mo old it just stopped working. Tried several usb ports on several machines. Dead! Apparently there is no warranty or website to contact the company. Buyer beware. Back to my vintage Logitech for me.Update: the manufacture still did not contact me, but the seller, ultrafast, did contact me, and verified that there is no warranted, but gave me a refund of half the cost, which I appreciated.

I bought this in June of 2015. It's now March. I really liked this as a replacement for my Logitech Marble. That trackball lasted well over a decade. This one, not much. With standard use, the wheel stopped working. I contacted the seller and inquired as to the warranty. I was told that the warranty is only good in Japan since it's imported. You shouldn't sell things that you can't support.

I bought this to try to replace a Logitech trackball, which had great ergonomics for my hand (which I must admit is smaller than the average adult). This one does not fit my hand nearly as well -- that I can deal with, and it would probably be fine for the average size hand. The problem is that the right-click button is so sensitive, that just resting my hand on the mouse will initiate the click. To operate this mouse, I have to keep a finger lifted at all times. The left button does not have that problem -- resting there is fine. I am going to have to replace this mouse.

This is a very poor trackball mouse. It is a very large mouse with a large trackball - most likely designed for those with large hands in mind. However:- The trackball is very stiff and difficult to move, even "sticky".- Due to the design and size it holds your fingers in the extended position, which means they will get sore with any prolonged use.- The lighted socket on the trackball is a gimmick and potentially distracting.- There are only five small rubber dots on the base to hold it in place, which is woefully inadequate.On the positive side the ball supports are steel rather than plastic.The Elecom optical trackball [USB] (5 button Black) M-XT1URBK is a far better pointing device and I recommend that instead.

Why one star? First, I LIKE the trackball. It is easy to use and works well for me. BUT,,,,both units I have owned pooped out after less than a couple of years each. They simply quit to function. All I did was plug them in and use them. They had easy lives but quit anyway.

I went from a Logitech trackball to this. I needed a wired mouse per my work security protocols. I thought I would give it a try. It took me 1 day to get used to my trackball so I figured, I wouldn't have too much of a problem. Oh boy! I was completely wrong. It went back within a few days later. It wasn't just getting used to the new mouse, the ball was stiff and scroll ring was almost impossible to move. The buttons buttons also didn't work right and stuck.

I had the Kensington Expert Mouse - Optical Trackball and it was by far superior until it broke and could not be fixed. This just doesnt measure up. I dont like how the scroll ring is not as sensitive as the other. It just seems slow to respond. Will not be purchasing this again and likely giving it away.

mouses are supposed to dwork, so that's a given. so i want to mention what i don't like - it's the left and right click buttons. they're not "clicky". they're not light and responsive. you gotta put just a tiny bit more effort into pressing down,,,so when you have to click often, as we all do, this becomes a big deal

All the positive reviews here made me think this was a no-brainer, slam-dunk of a purchase. After receiving? Umm...no. I was VERY disappointed with this thing. Where to start? First, the damned trackball wanders around in its cubby hole! Seriously, Kensington? My Logitech Trackman Marble doesn't. Second, the trackball feels like you're pushing a round rock covered in sandpaper. I understand the ball is supposed to loosen up eventually, but it's so bad out of the box, I find it unusable. Third, the positioning of the buttons is awkward; it feels like my arm/wrist/elbow would eventually pay the price of pain if I continually used it. Perhaps I'd get used to it, but it doesn't feel like it. Fourth, the scroll ring, (which I coveted the most, because a scroll wheel is what has seemingly always been missing from trackball mice). At first, it was very "jumpy" when surfing webpages; I discovered why when going into the mouse's properties; it was set to scroll 25 lines at a time (apparently the default setting when plugging this in to Windows 7)! I set it back to 3, which improved things, but...I had a bad tendency to "hit" the scroll ring as I was moving my mouse cursor with the trackball. A lot! So that was a deal-breaker. Finally, this thing is USB, and does NOT work with a KVM switch (when using a USB/PS2 adapter), which I need for my work.Look, Kensington (or Logitech); want to corner the market on trackballs? Use the same ergonomics as the Logitech Trackman Marble and PUT A FRICKIN' STANDARD MOUSE SCROLL WHEEL ON IT! To me, the place for it would be in the middle, about a centimeter below the trackball. Your hand would "clear" the scroll wheel when operating the trackball, so no accidental bumping of it, then when you need it, move your hand down a bit and use the wheel.

I use the Kensington Expert Mouse Optical USB Trackball for PC or Mac 64325 at home and I used to use the Kensington Orbit Optical Trackball Mouse 64327 at work. I bought this Orbit Trackball with Scroll Ring for work so I could have a scroll wheel. I've used it daily for about a month. Pressing the buttons or scrolling the wheel requires far more force than either the Expert Mouse or the regular Orbit mouse. My thumb and wrist are exhausted and sore after a few hours of use, whereas they NEVER are with the other two trackballs. The optical ball is just as smooth as either of the other two products, but I'm still going back to my old Kensington Orbit Optical Trackball Mouse 64327 at work - it's just so much better.