Logitech MX Master 4 (Wireless) review 2027

What problem does the Logitech MX Master 4 solve?

The MX Master 4 is an ergonomic mouse for people who spend long hours at a desk and want a shape that supports the hand rather than a flat, symmetrical shell. It is a wireless design weighing 151.8 g, with a sculpted right-handed body and a dual scroll wheel. The point of that shape is comfort and control over long sessions, not competitive twitch response.

Its strongest endorsement comes from RTINGS.com, which buys every unit it reviews and named this its top overall ergonomic mouse pick. That matters because the same outlet also published the limitation you would otherwise only discover after buying: the polling rate is capped at 125Hz. The MX Master 4 is therefore a mouse chosen for hand comfort and everyday precision, with its tracking ceiling stated up front rather than buried.

How did it score 7.6 out of 10?

We scored the MX Master 4 across five weighted criteria, each with its own maximum.

• Materials & build — 20 of 30. This criterion measures manufacturer-published material, construction and capacity specs. The MX Master 4 is listed as a 151.8 g wireless ergonomic mouse, and that is the extent of the published construction detail available to score against.
• Functionality — 20 of 25. This measures how well the product does its specific job: adjustability, brightness, tracking and holding power. For a mouse, the sculpted right-handed shape and the dual scroll wheel are the functional story, and RTINGS' own testing supplies the tracking verdict — including the 125Hz polling cap.
• Independent review consensus — 19 of 20. This criterion counts only genuinely confirmed hands-on testing read from the outlet's own page, never a second-hand aggregator claim. RTINGS.com buys every unit it reviews and named the MX Master 4 its top overall ergonomic mouse pick, which is about as clean a confirmation as this criterion allows.
• Durability & warranty — 10 of 15. This measures warranty length and weight or load ratings. No warranty figure is published for the MX Master 4 in the material we hold, so this criterion cannot score at full marks.
• Value — 7 of 10. This weighs price against materials and capability. At $119.99 the MX Master 4 sits in premium-mouse territory, and the 125Hz polling cap is a real capability limit at that price.

Those five results combine to 7.6 out of 10, placing the MX Master 4 fourth among the 13 products tested in this category.

Where the MX Master 4 stands out

Three strengths define this mouse.

First, the independent testing. RTINGS.com buys every unit it reviews, and it named the MX Master 4 its top overall ergonomic mouse pick. That is a hands-on result from an outlet with no supplied sample to protect, and it is the single most useful fact about this product.

Second, the shape. The MX Master 4 uses a sculpted right-handed form with a dual scroll wheel — a layout built around resting the hand in a supported position rather than gripping a symmetrical shell.

Third, the wireless build at 151.8 g. That weight is part of the ergonomic proposition: it is a substantial, planted mouse rather than a featherweight one.

Where the MX Master 4 falls short

The clearest limitation is the polling rate. RTINGS' own testing found it capped at 125Hz, which is a real limitation for fast tracking. If your work involves rapid, precise cursor movement, that ceiling is the number to weigh before anything else.

The shape is the second constraint: it is right-handed only, so left-handed users are excluded outright.

Third, there is a purchasing wrinkle. We could not confirm a single, unambiguous standalone Amazon ASIN for the MX Master 4, so we link to Logitech directly instead of pointing you at a listing we cannot verify.

Is the MX Master 4 worth $119.99?

The MX Master 4 is priced at $119.99. On our value criterion it scored 7 of 10, which weighs price against materials and capability. The case for paying that figure rests on the independent testing — RTINGS.com buys every unit it reviews and named this its top overall ergonomic mouse pick — and on the sculpted right-handed shape with its dual scroll wheel. The case against is the 125Hz polling cap, which is a genuine capability limit at this price, and the absence of a published warranty figure in the material we hold.

Who should buy the Logitech MX Master 4?

This mouse is for right-handed users who want a genuinely lab-tested ergonomic mouse. If your priority is a supported, sculpted hand position for long desk sessions, and you accept a 125Hz polling ceiling, the MX Master 4 is the pick RTINGS.com itself chose at the top of the ergonomic category.

It is not for left-handed users, and it is not for anyone whose work depends on fast tracking, where the 125Hz cap is the deciding factor.