This is the second adaptive mouse I've tried. I have pain in my wrist from years of computer work and switching to a trackball just made my thumb hurt. This mouse has been a great thing for me. By turning your hand more upright it reduces the strain in your wrist a lot and the angle of that increase is adjustable. Also, the scroll wheel that's normally between the other mouse buttons has been moved to the "top" edge of the mouse where it can be scrolled either with a finger or a thumb, which has helped me also. It also has forward and back buttons in where your thumb sits. I wasn't sure how practical that was at first but I use the back button quite often now, because it's so much easier than moving up to use the back arrow on the screen with the mouse or moving the hand that's on the mouse to the backspace key on the keyboard to go to the previous page. I would definitely recommend this if you want to give your wrists a break. Make note, this mouse is big enough for a medium to large hand. Some others I tried were not. I didn't even realize there were different sizes before I started looking for one. Read more
This has the best feel for an ergonomic mouse. The shape matches perfectly as I drop my hand down onto it naturally after setting the tilt adjustment. I can wrest my hand, wrist, and forearm flat on the desk while using the mouse. While it is large, it moves easily and glides smoothly. I do use a firm mouse pad; the larger base could possibly have too much friction if the pad material is too soft. The cursor movement is smooth and precise. I've tried quite a few different brands and models, and some have jittery cursor movement. This one is smooth and is good for high-productivity office, design, and gaming. The only problem is with the scroll wheel, and I see others have scroll issues too. For me, it frequently scrolls the opposite direction for a click or skips a scroll. It was doing this from the beginning or very early on. Middle-click drag scroll works fine. The ergonomics and overall function are so good, I'll still repurchase when I need another one. Read more
Iβve been having hand pain for ages when using a regular mouse and was told a vertical one may offer some relief. This review is for the V628X model - these reviews seem to be mixed in with their other models and I didnβt realize until after I ordered. TL:DR - Not suitable for smaller hands. Heavy, bulky, and takes a noticeable effort to move around a mousepad. Mouse wheel is awkward and the adjustable angle isnβt worth the added bulk to the design. Unplugged it after a few hours and went back to my original mouse. Iβve had it for about a day and already I can say that I hate it for a few different reasons: first, itβs massive and heavy. Definitely not for smaller hands. I have to anchor my pinky strongly against the base to make sure thereβs enough pressure to make the thing move without losing my grip. It becomes a strain to maneuver it around due to its bulk and weight while also requiring a lot more real estate to move. My current mouse glides across my mouse pad whereas this hulk feels like itβs being dragged. Itβs all one piece and requires a lot of space to move. Second, the mouse wheel is just awkward. Maybe itβs because I have small hands or maybe itβs just poorly placed. It wiggles around a lot and doesnβt feel stable when being used. You can βclickβ it, but itβs horribly awkward to do so. I end up hitting other buttons when trying to use it. Lastly, itβs too tall to store in an under mounted keyboard tray. As far as comfort and suitability for relieving pain? I can see the benefit. If my hands were a bit larger then maybe it would be easier to use. This mouse does offer a more comfortable way of holding than the normal ones. It also has a knob you can turn to adjust the angle of the mouse to better suit your comfort; however, itβs comes at a cost of added bulk. Besides the mouse wheel, the overall construction feels sturdy. Iβll be returning and trying something else. Read more

For J-Tech Digital V628X Vertical Mouse Pros: - Works with Linux. The onboard memory lets you program buttons and lighting on Windows with the software, and then use it on a different OS - Adjustable - Good cord length - Lightweight, and glides fine on the surfaces I tried - Unique scroll wheel allows you to scroll with either your thumb or pointer finger, and still has middle mouse click Cons: - Optical sensor is very cheap and doesn't track properly on any mouse pad I have. My main mouse pad is black, but I also tried a cheap light blue one and a white/gray one and it still didn't track. It also didn't track on my work desk (rough, white) which is where I needed it to work. The only surface it worked fine on was my home desk, which is rough and all black, but I don't need it at home. - Not as large as I hoped. This product advertises itself for 'large hands', but it fits my large hands like any other standard size mouse. - In addition to the sensor, the rest of the construction is cheap, particularly the base - Too easy to trigger middle mouse click while scrolling Overall rating: 1 out of 5, poor quality This mouse is way too overpriced. Cheaper mice have better sensors. I will be returning this product. Read more