Logitech’s MX Master series has long been the gold standard for productivity-focused mice, and the MX Master 4 continues that legacy without straying far from its roots. At first glance, the mouse looks instantly familiar, retaining the sculpted ergonomic shape that professionals swear by. However, closer inspection reveals subtle refinements—smoother curves, improved rubberized grips, and a more balanced weight distribution aimed at reducing wrist fatigue during long work sessions.
Enhanced Scroll Wheels for Power Users
One of the MX Master lineup’s defining features has always been its scroll wheels, and the MX Master 4 doubles down on this strength. Logitech has reportedly fine-tuned the MagSpeed electromagnetic scroll wheel to feel even more precise, especially when switching between ratcheted and free-spin modes. The horizontal thumb wheel has also received minor tuning, making it more responsive for timeline scrubbing in video editors or spreadsheet navigation for office users.
Sensor Upgrades and Surface Versatility
Under the hood, the MX Master 4 introduces an upgraded high-precision sensor designed to track flawlessly on nearly any surface, including glass. This makes it an attractive option for hybrid workers who move between desks, cafes, and home offices. While the DPI range isn’t aimed at gamers, it’s more than sufficient for designers, developers, and multitaskers who value accuracy over raw speed.
Smarter Connectivity and Multi-Device Control
Logitech’s Easy-Switch and Flow features return, allowing seamless switching between up to three devices and even dragging files across operating systems. The MX Master 4 improves connection stability over Bluetooth and Logi Bolt, reducing lag and dropouts—an important upgrade for professionals juggling laptops, desktops, and tablets simultaneously.
Battery Life and Sustainability Focus
Battery performance remains a strong point. Logitech claims weeks of use on a single charge, with USB-C fast charging delivering hours of productivity from just a few minutes plugged in. Notably, the MX Master 4 also leans further into sustainability, using more recycled materials and eco-friendly packaging, aligning with Logitech’s broader environmental commitments.
Should You Upgrade to the MX Master 4?
If you’re coming from an older MX Master 2 or 2S, the MX Master 4 feels like a meaningful upgrade thanks to better scrolling, improved connectivity, and refined ergonomics. However, MX Master 3 and 3S users may find the changes more incremental than revolutionary. The MX Master 4 is less about bold innovation and more about polishing an already excellent formula.