Overview
The Logitech MX Master series has been the go-to recommendation for productivity-focused computer users for several years. The MX Master 3S is the current iteration, refining an already polished formula with a higher-resolution sensor and quieter clicks. But at its price point, it competes not just on specs — it needs to justify itself against capable alternatives at half the cost.
Design and Build Quality
The MX Master 3S has an ergonomic, right-handed shape that fits medium-to-large hands naturally in a palm grip. The matte rubber surfaces on the grip areas feel premium and resist fingerprint smudging better than glossy plastics.
At around 141 grams, it's heavier than many mice — a deliberate design choice for stability rather than gaming-style precision movement. This weight feels reassuring on a desk but may be noticeable for users who prefer lighter mice.
The build quality throughout is excellent. Buttons have solid tactile feedback, and the thumb rest is contoured to reduce lateral strain during long sessions. The scroll wheel deserves special mention — it features MagSpeed electromagnetic scrolling that can switch between precise ratcheted clicks and near-frictionless free-spin mode, either automatically or via a button press.
Performance
The 3S upgrade over the MX Master 3 brings a 8,000 DPI sensor (up from 4,000 DPI) and significantly quieter primary click buttons. The sensor tracks accurately across most surfaces, including glass, which is a genuine differentiator from many competitors.
Connectivity options include Bluetooth and Logitech's proprietary Logi Bolt USB receiver. Wireless performance is reliable with minimal lag during normal desktop work. It's not designed for gaming — the polling rate and click latency aren't at the level competitive gamers require — but for productivity tasks it performs flawlessly.
Battery life is genuinely impressive. Logitech claims up to 70 days on a full charge, and real-world usage aligns reasonably well with that figure for moderate daily use. Charging is via USB-C, and a quick 1-minute charge provides enough power for a full day of use.
Software: Logi Options+
The companion software, Logi Options+, is one of the better peripheral software packages available. It allows:
- Customization of all programmable buttons per-application
- DPI adjustment and scroll wheel behavior tuning
- Flow feature: seamlessly move the cursor between multiple computers by moving it off the edge of the screen
- Gesture controls using the thumb button
The app is clean, doesn't require an account to use basic features, and isn't bloated with unnecessary notifications or upsells.
What Could Be Better
- Right-handed only: The ergonomic shape means left-handed users are excluded entirely.
- Weight: At 141g, it's noticeably heavier than lighter competitors. If you use a low-sensitivity setup requiring large arm movements, this gets tiring.
- Price: It sits in the premium tier. For users who primarily need basic pointing and clicking, the price premium isn't justified.
Who Should Buy It?
The MX Master 3S is genuinely well-suited for:
- Office workers and remote workers who spend 6+ hours daily at a computer
- Users who work across multiple computers or operating systems
- Designers, developers, and writers who benefit from per-app button customization
- Anyone upgrading from a basic mouse who wants to notice an immediate quality difference
Verdict
The Logitech MX Master 3S earns its reputation as one of the best productivity mice available. The scroll wheel alone is a feature that's hard to go back from once you've used it. If you spend significant time at a computer and value comfort, customization, and build quality, the price premium is justifiable. If you need a mouse for occasional use or primarily light tasks, a mid-range alternative will serve you just as well.
| Aspect | Rating |
|---|---|
| Build Quality | Excellent |
| Comfort (right-handed) | Excellent |
| Scroll Wheel | Outstanding |
| Software | Very Good |
| Value for Money | Good (for the right user) |