electronics

Logitech MX Master 3S Review -- The Mouse That Saved My Wrist (And My Productivity)

★★★★½4.7(89,700 reviews)

By MikeUpdated 2026-06-14

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Logitech

$99.99$119.99

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⭐ Our Verdict

The MX Master 3S is the best investment I have made in my desk setup. The ergonomic shape eliminated my wrist fatigue, the customizable buttons sped up my editing workflow, and the dual scroll wheel is genuinely useful for horizontal scrolling in spreadsheets and timelines. If you spend 8+ hours a day at a computer, this mouse pays for itself in comfort and productivity.

✅ Pros

✓MagSpeed scroll wheel shifts between ratchet and free-spin automatically
✓Ergonomic shape eliminated my wrist pain after 2 weeks
✓8K DPI sensor works on any surface including glass
✓USB-C quick charge -- 3 minutes gives a full day of use
✓Flow technology lets you drag files between 3 computers seamlessly

⚠️ Cons

✗Right-handed only -- lefties are out of luck
✗At 141g it is on the heavier side for a mouse
✗No onboard storage for the USB receiver (easy to lose)
✗ is premium pricing for a non-gaming mouse

I edit videos and work in spreadsheets for hours every day. My old mouse was a \ Logitech basic model that gave me wrist pain by 3 PM and made horizontal scrolling an exercise in frustration. When my physical therapist suggested an ergonomic mouse, I reluctantly spent the money on the Logitech MX Master 3S. Eight months later, I would buy it again at full price.

The Scroll Wheel That Ruined All Other Mice

The MagSpeed electromagnetic scroll wheel has two modes. Ratchet mode (clicky, precise scrolling, one line at a time). Free-spin mode (the wheel spins freely for seconds, letting you fly through 1,000-row spreadsheets or 100-page documents in a flick). The switch between modes happens automatically based on how fast you scroll. After using this, regular mouse scroll wheels feel broken.

The Thumb Wheel (Horizontal Scrolling Solved)

There is a second scroll wheel under your thumb for horizontal scrolling. If you edit video timelines or work in Excel, this alone is worth \. No more Shift+Scroll to move sideways -- just roll your thumb. It is also customizable for zoom, volume, or switching between desktops.

Ergonomics: The Wrist Pain Test

The sculpted shape fits your hand like it was custom-molded. Your thumb rests naturally on the wing, and the angle reduces forearm pronation. After 2 weeks of use, my end-of-day wrist pain disappeared completely. After 8 months, it has not returned. The mouse is heavy (141g), which sounds like a negative but actually adds stability for precise movements.

Best Price I Found

\.99 on Amazon. The previous MX Master 3 (non-S) is about \.99. The 3S adds quieter clicks and an 8K DPI sensor.

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Frequently Asked Questions

MX Master 3S vs MX Master 3 -- what is the difference?▼

The 3S has quieter clicks (90 percent quieter), an 8K DPI sensor (up from 4K), and the Bolt USB receiver instead of Unifying. If you work in a quiet office, the quieter clicks alone are worth the upgrade. Otherwise, the MX Master 3 at is nearly identical.

Does it work with Mac and Windows?▼

Yes, it works with both. There is a Mac-specific version (slightly different color, USB-C to USB-C cable included), but the standard version works identically on Mac with Bluetooth. Logitech Options+ software is available for both platforms.

How long does the battery last?▼

About 70 days on a full charge with 8 hours of daily use. USB-C charging means 3 minutes of charging gives a full day of use. The battery indicator light flashes red when you have about a week left.