Logitech MX Master 4 Review: The Productivity King Evolved

The Anchor on Your Desk

You buy an MX Master 4 because you want people to know you Do Work. It has the presence of a brutalist monument. It sits on your desk, unmoving, daring you to engage with it. It screams “I have deadlines” even when you’re just browsing Reddit. The Logitech MX Master series has always been about maximizing comfort through sheer surface area, and the 4 takes this to its logical conclusion: a mouse that feels like an extension of the table itself.

Plastic Surgery

Gone is the soft-touch rubber that eventually turned into a sticky mess on the MX Master 3. The 4 feels harder, colder, and significantly more durable. It’s textured plastic now, a decision that feels like an admission of guilt from Logitech regarding the biodegradable nature of their previous coatings. It doesn’t feel as luxurious out of the box, but in two years, when it isn’t peeling like a sunburned tourist, you’ll be grateful. The haptics buzz with a clinical precision, mimicking a mechanical feel without the moving parts. It’s synthesized reality, and it’s good.

The Weight of Expectation

Adapting to 150g takes refined muscles you didn’t know you lacked. If you’re coming from a lightweight gaming mouse, the MX Master 4 feels like moving a stone through molasses. It has inertia. You don’t just “flick” this mouse; you negotiate with it. The learning curve isn’t the shape—which is ergonomic perfection for palm grippers—but the sheer effort required to lift it. It forces you to increase your DPI just to avoid dislocating a shoulder.

The Infinite Scroll Addiction

Once you go MagSpeed, you can’t go back. Flicking the wheel and watching it spin for 15 seconds while 10,000 rows of data fly by is a drug. The new “Actions Ring” overlay is Logitech’s attempt to keep your hand on the mouse forever. It pops up a radial menu of shortcuts at your cursor, saving you the grueling journey to the keyboard. It’s clever, if somewhat distracting, but combined with the infinite scroll, it creates a workflow where your left hand becomes almost obsolete.

Built Like a Tank

This mouse will survive the apocalypse. The switch to harder materials means it won’t degrade, and the metal scroll wheels feel machined from aircraft parts. The clicks are “Quiet,” heavily dampened to avoid annoying your open-plan office neighbors, but they still have a dull, satisfying thud. It feels expensive, which is good, because it is.

The Software Tax

Logi Options+ is the toll you pay for entry. It’s slick, modern, and absolutely insists on running in the background to make the “Actions Ring” and haptics work. It’s not quite “bloatware” in the traditional sense, but it’s heavy. When it works, it’s magic, allowing you to teleport files between computers using Flow. When it doesn’t, you’re left with a very expensive paperweight that just vibrates occasionally.

The Digital Divide

The community is split. On one side, r/logitech loves the haptics and the fact that it finally includes a USB-C receiver for Macs. On the other, the weight increase is a dealbreaker for many. “It’s a brick,” they cry, longing for the days when 140g was considered heavy. But everyone agrees: the scroll wheel is still king. If you need it, you need this mouse. If you don’t, you’ll wonder why anyone would strap a weight to their wrist voluntarily.

r/logitech (Gripes): Reports of wrist pain and coating issues hurt the premium feel. (Thread)

r/gadgets (Rumors): Haptic feedback “Actions Ring” creates division, seen by some as a gimmick. (Thread)

YouTube (Hardware Canucks): Professional validation of the tech specs and “bottom-heavy” feel. (Video)