For reference my hand 18 cm measured from the first crease after your palm to the end of my middle finger. I flexed my wrist and the first crease I used as my end point for my palm. My arms are at a 90 degree angle, and my wrist is neutral (not flexed up or down) due to my wrist rest keeping my wrist straight. Most of my arm weight is on my memory foam wrist rest. My review is based on my personal hand size Update: After a month I have not noticed any staining on my white lift. But I am also a pretty hygienic person and I never touch my mouse if I touched food. Wrist pain: This might be because I don't have arm rests so the weight of my arm is resting on the wrist wrest, but I had some minor wrist pains within an hour or so. It didn't really feel like a muscle or bone kind of pain, but a nerve/soft tissue pain. When I didn't use a wrist rest, the weight was mostly the side of my hand, in particular the bony part near the wrist. That part rubbed when moving the mouse around if you don't lift your arm. Edit: After some adjustment I no longer get any wrist pain, even when gaming. Palm grip: I think palm grip would be unusable for this mouse. My fingers extend 0.5-1 cm after the end of the mouse (where the left and right buttons start curving). When clicking the mouse it almost feels like im clicking with my finger joint instead of my fingertip. With a relaxed thumb (thumb slightly curved and only fingertip touching mouse) it is pretty easy to click the side buttons. Side of thumb can press upper button, thumb joint can press lower button. With the entire thumb fully in contact with the mouse, the upper button is a bit awkward to press but possible, and the lower button is the same as relaxed thumb position. Awkward to use the scroll wheel since you have to curve your fingers quite a bit to get your finger tip on the scroll wheel but still usable. Also because of the hand angle, I found it much more comfortable using my middle finger to use the scroll wheel instead of my pointer finger that I use normally. Fingertip grip: Personally I found it feeling different, but perfect. My finger length is perfect so my fingers land around or slightly below where the left and right mouse button start to curve. When I click, the direction of the force from my finger is more diagonally down and to the left. If my fingers were a bit shorter, it the force would be to the left. I found this diagonally force feels more natural, kind of like squeezing a trigger (kinda) instead of just squeezing a mouse. It is hard to describe. In this grip, the only part of my fingers (including my thumb) that are touching the mouse are my fingertips. My palm is resting on the mouse. Thumb characteristics is same as palm grip. Scroll wheel characteristics same as palm grim. Claw grip: Works fine, only problem is pushing lower thumb button is a bit awkward since you kind have to shift your entire thumb back but it is still possible. Easy to use scroll wheel since your fingertips end right next to it Compared to g305: The Lift is much more comfortable and natural. I got used to the Lift very quickly. In comparison, the g305 felt like a petite mouse. The g305 felt hollow, like there was nothing supporting my palm. I didn't have any issues with the mouse shifting when clicking it on my mouse pad. Even on a smooth surface with no mouse pad it would happen rarely. Scroll wheel: Excellent combination of a normal scroll wheel and a free one. I can scroll down all the way to the end of reddit threads and spotify playlists in one scroll. Going back up takes a few scrolls however since I apply less force. Smooth scroll supplied by Logitech Options+ is also nice. Makes it feel like scrolling has inertia. There a lot of very nice features in Logitech Options+ like Logitech Flow

First time using an ergonomic mouse of this kind and it'll take a little bit of getting used to. Color matches the theme of my home office and it has a pleasant feel to it. No lights or RGB on this one. Very easy to move maneuver around with. The mouse is very accurate when you move it around your computer screen. I even connected it to my tablet and the accuracy and speed is great. Fast but not excessively fast. I do feel like that there is less strain on my wrist while using this mouse. It makes resting my hand in the wrist pad easier and more comfortable. The size is okay but I have big hands for a female so there will always be a size factor for me when it comes to various mice. The quality and build of this mouse is very good. I've had quite a few products in the past and now from Logitech so it's a brand that I trust. I'm not even opposed to buying another one of these for the office. Initially I thought I would have a problem adjusting to the scroll wheel and clicker being on the side of the mouse, but it's actually more comfortable and convenient than my current Windows mouse. Scrolling is much easier but still adjusting to clicking on things. I'm sure it'll become second nature soon. Instructions on the cardboard are super easy to follow to set up which devices you want to connect the mouse to. It took less than a minute to connect each of my devices. Being able to scroll back and forth on a website or folder without having to use the browser/folder's back and forth buttons is wonderful. I just have to not hit the left click button when I touch them. I decided to install the Logi Option+ software to see what all I could do with this mouse. I was a bit annoyed the software took longer to install than download. The actual mouse is lightening fast compared to the software. Since I'm just getting the product today and starting to use it today, I'm not able to speak on the battery life just yet. Comes work a typical AA alkaline battery which I'm grateful for, but at some point I'll change it to a lithium battery since those last a bit longer. Yet before I do that I'll check to set if the batteries last at least a year. So back to the software, once it finally installed, it took forever to load so guess that portion will be an update. Any hoo, great mouse with a movie of comfort, convenience, speed, and accuracy. 10/10 recommend!

I've had this mouse for about 2 months now, and I can't imagine my life without it. Before purchasing it, I was having lots of wrist pain from overuse of my laptop (I am a student), but also things like sketching and painting. After a few potential injury scares, I decided to look for an ergonomic mouse that could alleviate my pain. As soon as I saw that the mouse was available in pink, I went ahead and purchased it. Connecting it to my mac was very easy (it has bluetooth), and I've had not a single issue with it since. I am able to connect other devices, such as Airpods, to my mac at the same time, and have found the extra buttons very useful. It is safe to say that my wrist and forearm pain has all but disappeared. In these two months, I have not yet had to change it's battery (which was included). Not to mention, the mouse's durability. I can't count how many times I've dropped it on the floor. Sometimes, the battery goes flying out, or sometimes the USB connector on the inside launches across the floor, but it seems to be perfectly fine. This mouse has not yet been damaged, even with all of the abuse it has endured. Overall, great mouse.

Esse mouse vale o quanto custa! Há anos que venho tendo problemas com a mão direita por trabalhar com edição de foto e vídeo, ao ponto de os dedos ficarem endurecidos e não conseguir manipular coisas pequenas ou mesmo dar um nó num cadarço mais curto. Alguns colegas de profissão falaram pra eu usar mouse vertical ergonômico, admito que nunca havia me tocado de sua existência. Pesquisei alguns modelos com a metade do preço e todos tinham algum defeito que me desagradava ao ler suas avaliações, ao passo que este da Logitech parecia ser uma unanimidade. Adaptação: IMEDIATA! Tenho mãos de tamanho médio, a mão direita encaixou perfeitamente, as dores sumiram, e os comandos são silenciosos em sensíveis, sem delay algum. É um produto premium. Conexão: pluguei o conector usb e o mouse foi reconhecido de imediato no meu Mac. Nem testei via bluetooth porque uso um HUB com mais portas USB e tinha algumas sobrando. Conclusão: mouse ergonômico premium que vale o que custa, resolve os problemas musculares comuns para quem usa muito o computador, com altíssima sensibilidade e comandos silenciosos e suaves. PERFEITO

I’ve been using this mouse for over a year now. Before this, I used a similar one from Sanwa, which I liked, and I also tried a few other options but I think this one is the most comfortable. I was hesitant to get the white version, thinking it might get dirty easily. But after a year of daily use, it still has a clean, sleek look. Pros - Wrist-friendly: The ergonomic design really saves my wrist. I use it for 8 hours every day and my wrist never gets tired. I also like the rubbery texture. it feels nice to hold. - Long battery life: I use this daily for work, and in a year, I’ve only had to change the battery three or four times. I also appreciate that it only requires a single battery. - Quiet: The scrolling and clicks are very quiet. - Multiple device connectivity: While I don’t use this feature, it’s cool that you can connect to several devices. - Sleek design: A friend of mine bought one after seeing me using it because it looks good. Cons - Bulky: Since it’s vertical for ergonomic reasons, it’s a bit bulky. It doesn’t fit well in my laptop bag and my bag always has a weird shape as I have to shove it in. - Potential to get dirty: I chose the white version, and while I worry it might yellow or stain over time, it’s held up well so far (see photo). Overall, it’s a great mouse. Highly recommend!

Se lo compré a mi mujer, habla maravillas de él. Cómodo, silencioso, fácil de instalar y usar. Lo único que falta probar es durabilidad, aunque ya tiene un par de meses y se ve como nuevo. El tiempo lo dirá. En fin, excelente producto que vale la pena a precio de oferta o a precio normal

The only and best left handed mouse made by logitech. Quality quality quality product. I would buy this again and again forever if I need to. It surely has made my wrist pain disappear.

Funciona perfectamente, tiene muchas opciones de ajustes y personalización con la aplicación de Logi Options + y definitivamente cumple con la promesa de ser un mouse ergonómico y cómodo aunque definitivamente es quizá demasiado compacto. Ese último factor podría ser un detrimento dependiendo de la persona, pero sin duda, es importante considerarlo.