- 8K DPI Any-surface tracking: Use MX Master 3S cordless computer mouse to work on any surface - even glass (1) - with an 8000 DPI sensor with customisable sensitivity
- Quiet Clicks: MX Master 3S Bluetooth mouse with Quiet Clicks - offering the same satisfying feel but with 90% less click noise (2)
- Magspeed scrolling: A computer mouse with remarkable speed, precision, and near silence - MagSpeed scrolling is 90% faster (3), 87% more precise (4), and ultra quiet
- Ergonomic design: Work comfortably with a precision mouse featuring a silhouette crafted for a more natural wrist posture and optimally placed thumb controls
- Countless Customisations: Customise buttons and optimise your workflow with App specific profiles in the Logi Options+ app (5)
The Logitech MX Master 3S has been on sale since mid-2022. In a category where new gaming mice come out every quarter, that is geological. And yet, three years on, it is still the productivity mouse we recommend by default to anyone setting up a serious working-from-home desk. Here is the honest read on whether it is still worth £100 in 2026.
Short version: yes. The 3S is the most considered productivity mouse on sale in the UK. The shape is right, the scroll wheel is right, the multi-device pairing is right, and the quiet click upgrade from the original 3 fixes the one daily annoyance that owners of the older mouse will recognise. There are reasons to buy something else — small hands, vertical wrist position, gaming twitch — but for the default working-from-home desk, this is the mouse.
What the MX Master 3S is
Full-size right-handed wireless mouse. Bluetooth and Logi Bolt USB-A receiver. USB-C charging. Magnetic MagSpeed ratchet/freewheel scroll wheel. Horizontal thumb wheel. Six programmable buttons. Multi-device pairing for up to three machines. Logi Flow support for sharing between two computers. Two-month battery life on a charge, three hours from a one-minute top-up. Available in Graphite, Pale Grey, and a handful of regional colours.
It is exclusively right-handed. There is no left-handed version of the Master 3S; left-handers buy the smaller MX Anywhere 3S, which is ambidextrous.
What is in the box
The mouse, a 1m USB-C charging cable, a Logi Bolt USB-A receiver, and a small instruction leaflet. No charging dock, no carry pouch. Packaging is recycled cardboard.
Shape and feel
The Master 3S is a large mouse — 124mm long, 84mm wide at the widest, 51mm tall — sculpted to fill a medium-to-large palm in a relaxed grip. The right side has a pronounced thumb rest. The top has a high arch under the heel of your palm. The whole shape pushes you toward palm grip rather than claw or fingertip grip, which is the right answer for productivity work where the mouse stays in your hand for hours.
If your hand is small (under 17cm from base of palm to tip of middle finger), this is the wrong mouse. The Anywhere 3S is the smaller alternative. If your hand is medium-to-large, the Master 3S will feel like it was made for you within the first hour.
Build is matte plastic with rubberised side grips. The plastic does not pick up oil; the rubber side grips do, and they will pick up grime over the years. We have an original Master 3 that is four years old now and the rubber is still functional but visibly aged. Cosmetic, not structural.
The MagSpeed scroll wheel
This is the feature that justifies the price. Most productivity mice have a scroll wheel that clicks one notch per movement (ratcheted). Some have a free-spinning wheel for skimming. The MX Master 3S has both — a magnetic detent that gives you ratcheted feel for line-by-line work, and a button that disengages the detent for free-spin scrolling. There is also a SmartShift mode that automatically switches between the two based on how hard you flick the wheel.
In practice, the wheel is the productivity tool you did not know you wanted. Skimming a 200-page document goes from a chore to a flick. Browsing a long Slack channel happens at the speed of looking, not clicking. Coming back to a normal mouse afterwards feels primitive.
The wheel is steel rather than plastic, which gives it momentum in free-spin mode that a plastic wheel cannot match. This is engineering you can feel.
The horizontal thumb wheel
Above the thumb rest, a smaller wheel handles horizontal scrolling. In Excel, this scrolls left-right through wide spreadsheets. In Premiere or Final Cut, it scrubs the timeline. In Figma, it pans the canvas. In Logi Options+ you can remap it per application — we have it set to volume control in Spotify and brush size in Photoshop.
The thumb wheel is the second feature, after the main scroll wheel, that productivity power users notice they cannot live without once they have used it. It is also the feature you will probably ignore for the first month and discover by accident in week six.
Quiet click — the upgrade from the original 3
Logitech rates the 3S clicks at 90% quieter than the original Master 3. We would not put a number on it but the difference is real and audible. Sitting at a quiet desk, the Master 3 has a definite tap on each click. The Master 3S has a soft padded thunk — closer to a laptop trackpad than a clicky mouse.
If you take a lot of video calls, this matters. Anyone listening on a built-in laptop microphone can hear an original Master 3 clicking. They will not hear an MX Master 3S. For an office or shared workspace, this is the upgrade that justifies replacing a working Master 3.
Multi-device pairing and Logi Flow
Three devices via Bluetooth or Logi Bolt receiver, switched with a button on the underside (slightly inconvenient — we wish it was on the side like the keyboard). Switching takes about half a second and works reliably across Mac, Windows, iPad, and Android.
Pair the Master 3S with an MX Keys S keyboard and Logi Flow and the cursor crosses between two computers automatically when you push it off the edge of one screen. The clipboard goes with it — copy on the Mac, paste on the Windows machine, no fuss. This is the closest thing to magic in the consumer productivity category, and it is the reason many people who use both a personal Mac and a work Windows laptop end up with a Master 3S permanently.
Sensor and surface compatibility
The S in 3S includes a higher-precision Darkfield sensor that tracks on glass — not perfectly, but well enough that you can use the mouse on a glass desk without a mat. The original Master 3’s sensor would skip on glass; the 3S does not. Most people will not need this, but if you have a glass-top desk it removes the need for a mouse mat permanently.
Tracking on normal desk surfaces — wood, plastic, fabric mat, painted desk — is excellent. We have not tested it on a high-pile carpet because nobody puts a mouse on a carpet, but Logitech rates the sensor for any surface from 200 microns and up.
Battery and charging
USB-C. Two months of typical use on a charge. One minute of charging gives three hours of use, which is the figure that actually matters — you can plug in for the duration of a coffee and have enough to get through the morning. The cable comes with a low-profile USB-C plug that lets you keep using the mouse while it charges, which most third-party cables do not.
Logitech does not sell a charging dock for the Master 3S. There is no Qi wireless charging.
Logi Options+
Optional but recommended. The companion app handles per-application button remapping, Logi Flow setup, scroll wheel tuning, gesture button configuration, and firmware updates. The per-app remapping is what makes the mouse genuinely productive — we have the side gesture button set to Mission Control on Mac, Task View on Windows, and Page Source in browsers, all without thinking about it.
The app is more polished than the older Logitech Options it replaced. Resource use is light. Recommended on day one.
What we do not love
Three things.
First, the device-switch button is on the underside. The keyboard’s switch buttons are on the top deck. The mouse should have followed suit.
Second, no left-handed version. Logitech’s official answer is to buy the Anywhere 3S, which is ambidextrous but smaller. There is no full-size left-handed Master, and there has not been since the discontinued MX Performance from a decade ago.
Third, the price holds. The 3S launched at £99 and is still around £100 in the UK three years later. Logitech rarely discounts the productivity range significantly. Do not wait for a 50% sale that probably will not come.
Things to know before you buy
Hand size matters more than you think
If your hand is under 17cm from base to fingertip, this mouse will be too big and will tire your hand by the afternoon. Buy the Anywhere 3S instead. If your hand is over 19cm it will be a perfect fit. In between, try if you can.
It is for productivity, not gaming
The sensor is excellent for cursor work. It is not designed for FPS-style fast tracking. If you also game, keep a separate gaming mouse — Logitech sells the G502 X for under £80 and it pairs cleanly with the same Logi Options+ ecosystem.
The shape rewards palm grip
Claw and fingertip grippers can use the Master 3S but the shape is built for palm grip. If you grip your mouse with your palm raised off the back, the Master 3S will not feel right.
Pros and cons
Pros
- Best scroll wheel in the productivity category, by a clear margin
- Quiet click is genuinely silent enough for video calls
- Multi-device pairing and Logi Flow integration are productivity superpowers
- USB-C charging with a one-minute-for-three-hours fast charge
- Tracks on glass — no mouse mat needed
- Per-application button remapping via Logi Options+
Cons
- Right-handed only, no left-handed version
- Too large for hands under 17cm
- Device-switch button is awkwardly on the underside
- Rubberised grips age cosmetically over years of use
- £100 list price holds firm — rarely on real discount
Should you buy the Logitech MX Master 3S?
If you are right-handed, your hand is medium-to-large, and you sit at the same desk for most of your working week — yes. The Master 3S has been the right answer to this question since 2022 and there is nothing on the market that beats it on the combination of scroll wheel, multi-device pairing, and quiet click.
If you are left-handed, your hand is small, your wrist hurts, or you travel constantly — read our Best Wireless Mice for Productivity roundup for the alternative that fits your situation.
And if you already own an original MX Master 3 — should you upgrade? Only if the click noise on calls bothers you, or if Micro USB on the older mouse is starting to feel ridiculous. The 3S is a refinement, not a rethink, and the original Master 3 is still an excellent mouse.
[Affiliate link to Logitech MX Master 3S on Amazon UK]
