The Logitech MX Master 3S won because no other mouse in the field comes close to its scroll system. The MagSpeed wheel, which flips between precise tactile clicks and buttery infinite free-spin with a flick, remains the single best scroll wheel on any mouse, period. Switch and Click, Hardware Canucks, and 10BestOnes all singled it out as the defining feature.
Beyond scrolling, the dedicated horizontal thumb wheel is a genuine productivity tool. Hardware Canucks demonstrated how it transforms spreadsheet and timeline navigation from a two-handed chore into a one-thumb operation. It's the kind of feature that sounds minor until you use it daily and can't go back.
Logi Options+ software seals the deal. 10BestOnes called it the 'pinnacle of productivity mice' specifically because of the app-specific customization: different button mappings for Photoshop, Excel, Chrome, and Zoom, all switching automatically. The 90% noise-reduced clicks and 70-day battery life are the finishing touches, this mouse was built for people who live in quiet offices and never want to think about charging.
At $80 (down from its original $100 MSRP), the value proposition has only gotten stronger as the newer MX Master 4 pushes $120 with minimal improvements.
What It Won't Do
The MX Master 3S has a durability problem that Logitech has never properly addressed. The soft rubberized coating that covers the mouse's exterior, praised initially for its premium feel, degrades over time. Both Switch and Click and Hardware Canucks documented the same issue: after 1-2 years of daily use, the rubber turns sticky and yellows. It doesn't affect function, but it makes a $80 mouse look and feel cheap. The 125Hz polling rate is also genuinely archaic. While it's perfectly adequate for moving a cursor around spreadsheets, you can feel the difference if you've ever used a modern mouse. The cursor just doesn't track as smoothly. If you ever play even casual games on this mouse, you'll notice.
The Keychron M6 won the value pick because it packs specifications that have no business being in a $50 mouse. The PixArt PAW 3395 sensor, the same chipset found in $130+ gaming mice, delivers 26,000 DPI and 1000Hz polling. Cameron Dougherty Tech was visibly surprised during testing at how responsive the cursor felt compared to mice twice the price.
Switch and Click went further, calling the M6 their 'endgame mouse', a term usually reserved for $100+ products. The reason: it's the only mouse under $70 that successfully bridges productivity and gaming. The top scroll wheel toggles between notched ratchet and infinite free-spin (matching the MX Master's signature feature), and there's a dedicated side scroll wheel for horizontal navigation.
At 78 grams, it's nearly half the weight of the MX Master 3S. That matters not just for gaming (where you're lifting the mouse constantly) but for general comfort over long work sessions. Triple connectivity. Bluetooth 5.1, 2.4GHz dongle, and wired USB-C, means it works with any device in any scenario.
What It Won't Do
The Keychron M6's shape is its Achilles' heel. Both Switch and Click and Cameron Dougherty Tech noted the aggressive drop-off at the rear hump, which leaves larger hands without proper palm support. If you're used to the cradling shape of an MX Master, the M6 feels flat and unsupportive by comparison. The build quality also shows its price point. The plastic shell feels noticeably cheaper than Logitech's materials, and Cameron Dougherty Tech found the side scroll wheel scratchy and poorly positioned, it sits too high and requires an awkward thumb reach. The tilt-wheel's scroll increments are so small they're nearly useless for horizontal scrolling, which undermines one of the mouse's key selling points.
Who Should Buy Which
Logitech MX Master 3S
The undisputed king of productivity mice
- You spend 8+ hours daily in spreadsheets, documents, and creative apps
- You work in a shared office or take frequent video calls (quiet clicks matter)
- You never game on your work mouse, the 125Hz polling rate is a dealbreaker for gaming
- You want one mouse that lasts 70 days between charges and never think about battery
- You're invested in Logitech's ecosystem and want app-specific button customization
Keychron M6
Flagship specs at a budget price, the do-it-all mouse
- You want one mouse that handles both work and gaming without compromise
- You're price-conscious but refuse to sacrifice sensor quality
- You have small-to-medium hands, the M6's shape suits this size best
- You want the lightest possible mouse (78g) for all-day comfort
- You switch between devices constantly. Bluetooth, dongle, and wired gives maximum flexibility