Souris sans fil rechargeable MX Master 4 Off White - LOGITECH

Great mouse. The haptic feedback maybe feels fractionally gimmicky, but is not an issue. Build quality is excellent. The extra buttons are useful and not overwhelming. Sideways scroll wheel is superb, as is the excellent implementation of the standard scroll wheel - transitioning from graduated "clicky" scrolling to free-flowing fast scroll intuitively and at a user-controllable speed point. It's a shame that you only get access to the higher DPI resolution by using Options+, as it would be nice to be able to access this without relying on external software, but this is a minor gripe.

Great upgrade from the MX Master 3, takes some getting used to the change in use of the "thumb button" but works well with the haptic feedback, will be interesting to see how apps begin to make use of this within the Options plugins! Very quiet clicks, fits well in hand and generally great to use.

Ok but left button already sticking. This is why I replaced my mx4 so am not happy

I've been looking forward to a new MX Master for years after my previous finally had had enough. I am very pleased with the new version. Customisation of the action button is quite useful. Can't fault it

I had two Master 3S mice and replaced them with Master 4's because they were advertised as even quieter, and I've found that to be the case - not as much a leap as from the 3 to the 3S, but still pleasing. I also enjoy the new Gestures button (in front of the Forward/Back pair) and the way the new Action button (replacing the old Gestures button) is much easier to press (a soft press inward rather than an overly firm press downward) and brings up a programmable menu of options. The only mild negative is that it's hard to pick up and relocate without pressing any of the thumb buttons, but I've retrained myself to pick it up with my thumb under the left edge, and I'd rather that than do without the new Actions button.

This is a highly responsive and easily programmable mouse, which means that you can not only navigate the screen quickly but also perform loads of frequently used functions through mouse clicks, buttons and wheels. There are many preset functions that you can choose from and it is also possible to add key commands which you have set up in other apps. The new addition to this, the thumb button which is set to open an Actions Ring (also programmable) was overly sensitive for me at first but I have recently found that I can change the sensitivity to 'Firm' which has resolved that problem. Its shape is comfortable and I can work for hours with this mouse. An excellent piece of equipment.

The Logitech MX Master 4 is easily one of the best productivity mice I’ve ever used. From the moment you pick it up, the ergonomic design feels premium and comfortable, especially during long work sessions. The build quality is solid, and the matte graphite finish gives it a sleek, professional look.

The standout feature is definitely the MagSpeed scroll wheel—it’s ultra-smooth, fast, and precise. Switching between ratchet and free-spin modes happens automatically, and it makes browsing long documents or spreadsheets effortless. The side scroll wheel is also a huge upgrade for multitasking, especially for video editing, spreadsheets, or timeline controls.

Battery life is impressive, lasting weeks on a single charge, and it charges quickly through USB-C. The customisable buttons let you tailor the mouse exactly to your workflow, and the ability to switch between devices with one tap is perfect if you work on multiple screens or systems.

Overall, the MX Master 4 is worth every penny. If you value comfort, performance, and productivity, this mouse is a must-have. Highly recommended.

it needs more polling rate, needs to be lighter and the side scroll needs to be adjusted so its not easy to accidentally side scroll.