Key takeaways
- Outstanding all-day ergonomic comfort for right-handed palm grip
- MagSpeed wheel is the best scrolling experience on any mouse
- Quiet clicks and multi-device Flow make it superb for offices
- Excellent multi-week battery with fast USB-C charging
What's inside
The Logitech MX Master 3S is a productivity mouse, not a gaming one, and it is arguably the benchmark for the category. It pairs a sculpted ergonomic body with an 8,000 DPI sensor that tracks on glass, an electromagnetic MagSpeed scroll wheel, and near-silent clicks, all aimed at people who spend their day in spreadsheets, code, and creative apps.
This is the mouse for professionals, developers, and multitaskers who want comfort over eight-hour days and the ability to fly between multiple computers. If your priority is precision aiming in games, this is not your tool; if it is throughput and comfort at a desk, it is close to ideal.
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Watch: Logitech MX Master 3S Review — Video Review
Design & Build
The 3S is a large, tall mouse contoured for palm-grip right hands, with a dedicated thumb rest, a horizontal scroll wheel, and a gesture button hidden under the thumb. Materials feel genuinely premium, the rubberized coating is grippy, and the whole thing feels dense and planted. The refinement over the previous model is the switch to quiet clicks, which are dramatically softer while still tactile. Downsides are inherent to the design: it is heavy, strictly right-handed, and too big for small hands or fingertip grips.
Performance
The star is the MagSpeed wheel, which ratchets for precise scrolling and then spins freely to fly through long documents, switching modes automatically based on flick speed. Tracking on glass and other awkward surfaces genuinely works, and Logitech’s Flow software lets you glide the cursor across multiple machines and even copy-paste between them.
Battery life is measured in weeks, and a one-minute USB-C charge yields hours of use. The trade-offs are that the 8,000 DPI sensor, while smooth, is not tuned for the low-latency demands of competitive gaming, and the software can feel heavy if you only want basic remaps.
Pros & Cons
- Outstanding all-day ergonomic comfort for right-handed palm grip
- MagSpeed wheel is the best scrolling experience on any mouse
- Quiet clicks and multi-device Flow make it superb for offices
- Excellent multi-week battery with fast USB-C charging
- Heavy and unsuitable for fast-twitch gaming
- Right-handed only and too large for small hands
- Premium price and software that is heavier than some need
Alternatives to Consider
If you want the newest features, the Logitech MX Master 4 adds haptic feedback in the same body. Travelers and smaller hands should consider the more compact Logitech MX Anywhere 3S, and anyone building a full desk setup can save by buying the Logitech MX Keys S Combo, which bundles a matching keyboard and mouse.
Frequently Asked Questions
Can I use the MX Master 3S for gaming?
You can play casual games, but its weight and productivity-tuned sensor make it a poor choice for competitive shooters. Buy a dedicated gaming mouse for that.
Does it really track on glass?
Yes, on glass at least 4mm thick. It also handles most desks and awkward surfaces that trip up other mice.
What is Logitech Flow?
Flow lets one mouse control multiple computers, moving the cursor between screens and copying files or text across machines over the same network.
How is it different from the older MX Master 3?
The main upgrades are much quieter clicks and a higher 8,000 DPI sensor; the shape and core features are largely the same.
Verdict
The MX Master 3S is the productivity mouse most others are measured against, and it earns that status with superb comfort, the best scroll wheel around, and thoughtful multi-device features. It is heavy, right-handed, and wrong for gaming, but for desk-bound professionals it is very hard to beat and comfortably worth the premium.
