Logitech MX Master 3S Review

The Logitech MX Master 3S is widely considered the best productivity mouse money can buy — and after weeks of daily use, it is easy to see why. From its perfect ergonomic shape to the magical MagSpeed scroll wheel, this mouse transforms how you work at a computer.

Design & Ergonomics

The MX Master 3S has a sculpted shape that fits the right hand like a glove. The thumb rest, palm contour, and button placement all feel natural and reduce strain during long work sessions. At 141g, it has enough weight to feel substantial without being tiring to move around.

Build quality is excellent with a matte finish that resists fingerprints. The silicone side grips provide a secure hold, and the overall construction feels premium and durable. It comes in Graphite, Pale Gray, and Black colorways.

MagSpeed Scroll Wheel

The star feature. The electromagnetic MagSpeed scroll wheel switches seamlessly between precise ratcheted scrolling (line by line) and free-spinning mode (scroll through 1,000 lines per second). The transition is automatic and feels magical — flick the wheel hard and it spins freely, scroll gently and it clicks precisely. This single feature is worth the upgrade from any other mouse.

There is also a horizontal scroll wheel on the thumb side, perfect for navigating wide spreadsheets or timelines in video editing software.

Sensor & Tracking

The 8K DPI Darkfield sensor tracks on virtually any surface, including glass (minimum 4mm thickness). Tracking is precise and consistent across different desk surfaces, mouse pads, and even on your jeans if you are working from the couch. You can customize DPI settings through the Logi Options+ software.

Quiet Clicks

The "S" in 3S stands for silent — Logitech reduced click noise by 90% compared to the MX Master 3. The clicks still have satisfying tactile feedback but produce almost no audible sound. This is a game-changer in quiet offices, libraries, or late-night work sessions without disturbing others.

Multi-Device & Productivity

Connect to up to 3 devices simultaneously via Bluetooth or the included USB-A Logi Bolt receiver, and switch between them with a button on the bottom. The Flow feature lets you move your cursor seamlessly between multiple computers and even drag-and-drop files between them.

Customizable buttons (7 total) can be programmed per-app in Logi Options+. For example, the thumb button can do different things in Photoshop vs. Chrome vs. Excel. Gesture buttons add even more shortcut possibilities.

Battery Life

Up to 70 days on a full charge via USB-C. Just 1 minute of quick charging provides 3 hours of use. In practice, you will charge this mouse maybe once every two months — battery anxiety is non-existent.

Who Should Buy This?

Anyone who spends significant time working at a computer. Whether you are a programmer, designer, writer, analyst, or general office worker, the MX Master 3S will improve your comfort and efficiency. The only people who should skip it are left-handed users (Logitech makes the MX Master for left hand separately) and competitive gamers who need ultra-low latency.

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