Logitech MX Master 4 review: The ultimate productivity mouse got even better

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Picking up the Logitech MX Master 4 for the first time, I’m struck by how well it fits in my hand. Its shape is just right, with a slope that allows the wrist to rest naturally and the thumb to fall onto the buttons. It’s a mouse that feels long enough to keep your fingers from hitting the touch buttons–something that has annoyed me on many other models. The MX Master 4 isn’t about speed or RGB lights, it’s about comfort, precision, and getting work done.

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The surface is solid, the materials feel premium and the clicking sounds are almost non-existent. The right and left buttons are extremely quiet and very sensitive, which is perfect in open-plan office environments but takes some getting used to. I quickly realize I’m pressing too lightly at first, but after a few days of use everything feels natural.

The weight, on the other hand, is noticeable. The mouse is heavy, which gives a solid feeling, but it also becomes sluggish to move quickly. For me, who mostly works in editing and office programs, this isn’t a disadvantage per se, but when I try to play a few rounds in FPS games, it feels that this is not the right mouse for that purpose.

Logitech MX Master 4: Scroll wheel and control

The magnetic scroll wheel is absolutely amazing! You can switch between distinct incremental scrolling and free scrolling that just spins on for ages. It’s handy, especially when I’m working in long documents or browsing through image archives. At the same time, it has a small drawback: when moving quickly, the wheel can feel a little loose, almost like it’s living its own life for a split second. This doesn’t bother you in everyday use, but it’s noticeable when the pace picks up.

Under the thumb is another scroll wheel, the horizontal scroll. It took a few days to get used to, but it’s really handy when you’re working in Excel, timelines in video editing or large whiteboard programs like Miro.

One novelty is the gesture button–holding it down and dragging the mouse in different directions lets you assign it its own functions. It’s clever in theory, but in practice I rarely use it. Most of the time, pressing keyboard shortcuts is faster than remembering which movement does what.

Logitech MX Master 4: Software

All customization is done via Logitech’s Logi Options software. There you can adjust haptics, scroll resistance, brightness, and define what each key should do in different programs. It works perfectly for app-specific commands and by default the thumb buttons are programmed to general “undo” and “ready.”

The software is very focused on workflows in specific apps rather than free automation. For me, who likes to customize everything to my own shortcuts, it feels somewhat limited. You can build longer command chains or script your own sequences, but functionally it’s limited which is a shame.

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Logitech MX Master 4: User experience

In practical use, the MX Master 4 is still a delight. The sensor is extremely accurate, it works on almost any surface–even glass–and the response is immediate. I especially appreciate how smooth the feel is over time: no lag, no jerks, just steady precision.

Battery life is also impressive. After several weeks of daily use, I still have plenty of charge left, and charging it is quick via USB-C. I like the fact that I can continue to use the mouse while it is charging, something many manufacturers still miss.

The only thing that grates a bit is the polling speed. At 125 Hz, it doesn’t feel as snappy as a real gaming mouse, and it’s noticeable when I try to spin quickly or aim accurately in games. But again, this isn’t a gaming mouse, and that’s not the point.