The MX Master 4 feels solid and comfortable in my hand. I appreciate the context-sensitive controls. Also, I'm glad for the included dedicated dongle. I tried connecting through both standard BlueTooth and the dedicated dongle. I liked the flexiibility of using the BlueTooth controls, but I found that the dongle gave me faster response -- probably because of other device loading through my integrated BlueTooth.
With iPad getting closer to macOS, I expected the mouse to have a good support for iPadOS, but it does not support well. Neither it supports Linux that well. Most developers are using linux distros, logitech should have thought about it.
I had the Master 3 before this one and hands down love it more. The haptic takes a bit to get used to, but is so helpful. I like that it’s black so that it hides the dirt better. So comfortable and helpful with its capabilities.
This is a great mouse with one flaw that made me return it. The ergonomics hurt my wrist. I had the MX master 3 before this and loved that mouse. Everything about this is a welcome upgrade, except the angle that it turns my wrist. The new design levels out the angle that your wrist holds the mouse so that it’s more parallel with your work surface. It hurt so much I had to return it.
I have been using Logitech hardware for years now, and I have never been disappointed. Battery life is exceptional, ease of use is outstanding. HOWEVER, I wanted to give this product a 5, but there's one annoying feature that keeps me from doing so. The thumb click for the action ring drives me nuts. I use this mouse for gaming as well, and every now and then I press too hard on the "pad" and the ring appears and makes me lose my place in the game. I have turned down the sensitivity, but it still triggers. I wish I could disable it altogether, but I have been told it can't be done.
Love the extra functions; but it does not move as smooth as MX3S
on May 11, 2026
Posted by: AW-hou
from USA
Verified Purchase:Yes
Extra functionality, but has different stick-slip than MX3S. I end up pushing the cursor too far and having to backtrack because of the stickslip. When you turn over the MX4 and the MX3S, the portion of the live which touches the table is considerably different causing the MX4 to stick and not move as smoothly as my old MX3S
This is a wonderful ergonomic mouse and definitely worth the price. The haptic feedback works really well and gives a reassuring feel when the mouse connects to the device. The buttons are soft, responsive, and comfortable to use. Still more to explore.
The scrolling experience is excellent—very smooth and extremely fast, which is especially helpful while working with large documents. The side scroll feature is another great addition, making it easy to navigate Excel sheets horizontally from left to right.
Overall, this mouse improves productivity and comfort during daily use. Thanks to Logitech for creating such a great product!