Quick verdict
The MX Master 3S is what happens when a company keeps refining the same mouse for a decade. The sculpted shape, the magnetic scroll wheel that spins for what feels like forever, and the thumb wheel for horizontal scrolling remain unmatched for long editing or spreadsheet sessions. The 3S generation adds quieter clicks and an 8,000 DPI sensor that finally tracks well on glass. If your hand fits it, nothing else this side of its own successors comes close.
Key specs
| Sensor | 8,000 DPI Darkfield, tracks on glass |
| Clicks | “Quiet Clicks” – about 90% quieter than the 3 |
| Scroll | MagSpeed electromagnetic wheel + horizontal thumb wheel |
| Connections | Logi Bolt USB receiver + Bluetooth, 3 devices |
| Battery | USB-C fast charge; roughly 70 days per full charge |
| Weight | 141 g |
What we like
- The shape genuinely reduces wrist strain during eight-hour days – the reason this mouse keeps selling years into its life.
- MagSpeed scrolling is the best way ever invented to fly through a 300-page PDF, then land precisely on one line.
- One-minute charge buys a day’s use; nobody thinks about charging this mouse.
- Flow between two computers (copy on one, paste on the other) actually works and is worth setting up.
What could be better
- Medium and small hands will find it too large – try the MX Anywhere 3S instead.
- Left-side buttons sit under a resting thumb; accidental back-clicks happen until you relearn grip.
- The $99.99 list price rarely drops below the mid-$80s, and the older 3 is frequently discounted into “good enough” territory.
Who it is for – and who should skip it
Buy it if you work in documents, code, timelines or spreadsheets all day on a desk with room for a full-size mouse. Skip it if you have small hands, travel ultralight, or mainly game – symmetric lightweight gaming mice do that job better for less.
How it compares
- MX Master 3 – 90% of the experience for often $30 less; you mainly give up the quieter clicks and glass tracking.
- MX Anywhere 3S – the travel sibling: smaller, no thumb wheel, same sensor and quiet clicks.
- Razer Pro Click – bigger and softer clicks, but the software experience trails Logi Options+.
Price and where to buy
List price is $99.99 with routine sales into the mid-$80s. Check the current price on Amazon (affiliate link – see our affiliate disclosure).
Update log
October 17, 2026 – guide published with specifications and owner-feedback analysis; hands-on testing underway.
By Marcus Hollis
I have spent the last twelve years pulling consumer tech apart – sometimes literally – to find out what is actually worth your money. Before starting Freakin Review, I ran product QA and return-rate analysis for a Dallas-based electronics retailer, where thousands of returned devices a month taught me one lesson: spec sheets lie more often than reviewers do. I lead our testing bench in Austin, where every power bank, pair of earbuds, and computer peripheral goes through a standardized 10-point routine – real measurements, weeks of daily use, and no free sample we are afraid to criticize. When a product fails, I say so, even when the affiliate link pays less.