Logitech MX Master 3S vs Logitech MX Keys S
We compare the Logitech MX Master 3S and Logitech MX Keys S head-to-head on performance, features, value, and more. Here's which one wins.
Logitech MX Master 3S
Scored 9.2/10 in our testing
Logitech MX Master 3S
Best Logitech mouse for productivity and creative professionals
Logitech MX Keys S
Best Logitech keyboard for typing comfort and multi-device workflow
Score Breakdown
| Logitech MX Master 3S | Category | Logitech MX Keys S |
|---|---|---|
| 9.5/10 ✓ | Performance | 9/10 |
| 9.5/10 ✓ | Features | 9.3/10 |
| 9/10 | Ease of Use | ✓ 9.5/10 |
| 8.5/10 | Value | 8.5/10 |
| 9.2/10 ✓ | Overall | 9.1/10 |
Specs Comparison
| Logitech MX Master 3S | Spec | Logitech MX Keys S |
|---|---|---|
| 8000 DPI Darkfield — any surface | Sensor | Low-profile scissor switches — quiet and tactile |
| MagSpeed electromagnetic scroll | Scroll | Smart backlighting, spherical keycaps |
| Per-app button customization via Logi Options+ | Features | 3-device Bluetooth + USB receiver |
| 70 days — USB-C charging | Battery | 10 days backlit / 5 months without |
Logitech MX Master 3S
Pros
- + MagSpeed scroll is the best scroll wheel mechanism ever made
- + Per-app customization automates different shortcuts per application
- + 70-day battery eliminates charging anxiety
Cons
- − $99 is premium for a mouse
- − Right-hand only — no left-handed option
- − Learning Logi Options+ software takes time to maximize value
Logitech MX Keys S
Pros
- + Spherical keycaps improve typing comfort and accuracy
- + Smart backlighting and 3-device switching add genuine workflow value
- + Low-profile design maintains neutral wrist position
Cons
- − $109 is premium for a non-mechanical keyboard
- − Full-size layout is wide — pushes mouse far from center
- − Non-replaceable battery will degrade after 3-4 years
Our Verdict
Based on our scoring, the Logitech MX Master 3S comes out on top with an overall score of 9.2/10. The MX Master 3S is the mouse every creative professional and knowledge worker should own. MagSpeed scroll switches between precise click-scrolling and free-spinning instantly. Per-app button customization means different shortcuts in Photoshop vs Chrome vs Excel — automatically. The thumb wheel handles horizontal scrolling. Darkfield sensor tracks on any surface including glass. The productivity mouse benchmark.
Buy the Logitech MX Master 3S on AmazonRead the full Best Logitech Products 2026 guide for complete reviews of all 2 products.