Customer Ratings & Reviews

At first glance the MX Master 4 looks barley different from the Master 3 but the first time I laid my hand on it, it felt familiar yet different. Logitech didn’t reinvent the mouse wheel, but they did sand down some rough edges. The most immediately noticeable change is the removal of the soft touch surfaces which ALWAYS gets kinda gross over the course of a few years. The switch from the soft touch material to textured plastic on the outer shell is a welcome move. The silicone rubber pad where my thumb, ring and pinky make contact with are said to be more resistant to the deterioration from handling, but I will remain skeptical on that and will have to wait and see if I am happy about it. The only concern with the new textured plastic is when that plastic shine will start to develop. The 8000 DPI sensor is said to remain the same as the predecessor and still tracks smooth on all the surfaces I use it on. The 3 gave me no problems on that front. The other notable changes to the Master 4 is the addition of haptic feedback via the new Action Ring and Haptic Sense Panel, which adds a tactile layer to gestures and scrolling. It’s subtle, but it makes the mouse feel more responsive and modern expanding functionality without having to take your hand off your mouse more frequently. Battery life is said to be improved, but I had no issue with the predecessor so if it gives me the same performance I can have no complaints on that front. All that being said, the Master 4 is still not perfect. The 4 is like everything else these days, is more expensive. The haptics don't have much of a use for me and can be somewhat distracting. Aside from those my biggest gripe (for ALL logitech products) is the Options+ software. This mouse and many other peripherals have the ability to switch to 3 separate devices on the fly, however, all of those devices need to have Options+ in order to have the full functionality of these devices. On board storage would have allowed me to only need to install Options+ on 1 device and use the same settings where ever I use the Master 4. The only other oddity I noticed was the placement of my thumb. I inadvertently hit the Action Ring Thumb button far more than the gesture thumb button on the Master 3. I switched the functionality via the Options+ but need to to do that on all the software from PC to PC. My simple conclusion to the MX Master 4 is, if you don't have a MX Master already and you need a productivity mouse or if your existing MX Master is on it's last leg, GET IT. If you have a Master 3 or 3s in good shape, you can likely pass on this iteration.

First impression: This is a heavy mouse! For background info, I use gaming mice for work and play. They're light, have a lot of buttons, and extremely customizable. The MX Master 4 seemed like something I needed to give a shot since I love buttons - my favorite mouse was discontinued (G604) with no suitable replacement so I went back to a G502. Upon first use I kept hitting the spot where the top side buttons would be on both the G604 and G502. I used those two bottons all the time, so muscle memory has me hitting that spot and it ends up being just a left click. I need those buttons, lol. Second heavily used botton is the side scroll. I map those to other function and they get tons of use also. No side scroll on the main wheel, but there's a dedicated scroll wheel on the side. Not as easy to hit as a side scroll, which only needed a light side finger bump without having to change your grip. Also, the spacing of the buttons are too far apart and also need grip adjustment to push. Big thing, the weight. I use glass skates on my mouse so a hard breeze will blow it across the mouse pad. The Master 4 comes with the standard mouse feet and it feels like I'm dragging the mouse through molasses. Most people won't have an issue with this, I'm the weird one for liking almost no friction when mousing so this is just something to point out to people who are like me. I do have some ceramic mouse skate dots that I haven't installed yet, but I'm waiting for a third party fitted skates either glass or ceramic. I really can't do the rubber, plastic, or whatever the material is. Haptic feedback seems like a battery drain more than a feature I'd use. So it's off. I do like the big thumb button. While I don't see a real use for it yet, the action ring could get some use once I figure what I'd like to customize each input for. Gamers should be familiar with the ring since a lot of games incorporate them. The Master 4 allows you to use it for any application and even set actions for some apps outside of the one you're focused on. Gestures...not for me either. There used to be a third party app a long time ago that allowed the same function, but it just seemed slower or no more inconvenient than dragging and clicking because of the size of the gestures you need to make for input. That program allowed for custom gestures though so you could make any shape become a gesture. Mostly it's a good mouse, but I like lightweight mice with top buttons and side click on the scroll wheel. Also keeping all buttons close and easy to tap with just a shift of the fingers instead of having to reposition your fingers to click is a feature I need. This mouse just doesn't do it for me so I'll have to go back to my gaming mouse. The build and shape are terrific, but it needs to go on a diet and take notes from the G502's about button placement.