Logitech MX Master 4 vs MX Master 3S Honest 2026 Pick

Every time the Logitech MX Master 4 vs MX Master 3S question lands in my inbox, the doubt is nearly always the same one: that the haptic buzz in the Logitech MX Master 4 is a feature you will switch off in a fortnight and then feel daft about having paid for. That is a sensible doubt, and for most desks it is also correct.

Both mice are the same shape, the same sensor and the same scroll wheel on paper. The Logitech MX Master 3S is the cheaper one, and it is the one I would spend my own money on unless you spend your day inside Premiere Pro, Figma or Excel macros. The MX Master 4 earns its premium in exactly one place: the Actions Ring, an on-screen menu of shortcuts that the haptic motor confirms under your thumb. If that sentence made you lean forward, read on. If it made you shrug, you have your answer already.

In this guide

1. Quick Verdict
2. Quick Specs Overview
3. How I Compared the Logitech MX Master 4 vs MX Master 3S
4. Logitech MX Master 4: a genuine new idea, aimed at a narrow user
5. Logitech MX Master 3S: the one most desks should buy
6. Head-to-Head
7. Who Should Buy Which
8. FAQ
9. Final Recommendation: Buy Once, Buy Right
10. Sources

Quick Verdict

• For most people: the Logitech MX Master 3S . Same 8,000 DPI Darkfield sensor, same quiet clicks, same 70-day battery claim from Logitech, meaningfully less money.
• If money is no object, or shortcuts are your job: the Logitech MX Master 4 . The Actions Ring plus haptic confirmation replaces a keyboard shortcut sheet if you work in one heavy app all day.
• On a budget, or if your hand is smaller than average: the Logitech MX Anywhere 3S . Same sensor family, far smaller body, no thumb wheel.

All three picks sit together in my Amazon storefront if you would rather skip the reading and check current stock.

Quick Specs Overview

These are manufacturer figures from the two spec sheets, lined up so you can see how narrow the gap is. In the Logitech MX Master 4 vs MX Master 3S comparison, the rows that differ are the whole argument.

How I Compared the Logitech MX Master 4 vs MX Master 3S

My method is research, not testing: this guide is built from the manufacturers’ spec sheets and from published testing and owner feedback reported by named outlets, and it was drafted with AI assistance.

I started with the wider shortlist of premium productivity mice a home-office buyer actually sees on Amazon: the MX Master 4, the MX Master 3S, the MX Anywhere 3S, the Logitech Lift vertical mouse and the Razer Pro Click line. The vertical and the Razer dropped out fast, because they answer different questions (wrist angle, and desk aesthetics respectively) rather than the question in front of you, which is whether the newest MX Master is worth more than the old one.

Three decision factors decided this one.

• Does the sensor or the scroll change? If the new model tracked better or scrolled differently, the upgrade would be easy to justify. It does not, on the published figures.
• Does the new feature survive a normal workday? A haptic motor and a radial shortcut menu only pay off if you use them past week two, and they depend entirely on Logi Options+ running.
• What does the price gap buy elsewhere? The difference between these two is roughly the cost of a decent mechanical keyboard’s worth of keycaps, or a chunk of a good webcam. Buying the 3S and spending the rest on the thing that is actually annoying you is often the smarter move.

RGB, gaming polling rates and sensor smoothing never made my list, because neither of these mice is a gaming mouse and pretending otherwise helps nobody. If frames are what you care about, my G305 versus Razer Viper comparison is the relevant page.

Logitech MX Master 4: a genuine new idea, aimed at a narrow user

The Actions Ring is the reason this mouse exists. Press the button Logitech assigns to it and a small radial menu appears on screen with your chosen actions inside it, sorted per application, so the ring you get in a video editor is not the ring you get in a browser. The haptic motor in the thumb area gives you a small physical confirmation as you land on each segment, which is the part that makes it feel like hardware rather than a floating menu.

In a heavy app, that is a real workflow change. Mute and camera toggles during calls, cut and ripple-delete in an editor, layer actions in Photoshop, all without leaving the mouse or memorising another three-key combination. Logitech also reworked the shell and the thumb area, and the receiver is now USB-C, which matters more than it sounds if your laptop has no rectangular ports left.

The catch is dependency. Everything interesting here lives inside Logi Options+, so on a locked-down work laptop where you cannot install the software, you have bought a heavier MX Master 3S. The haptics are also the first setting plenty of people go looking for, and Logitech sensibly lets you turn them down or off.

What owners say

Owner feedback reported by review outlets splits cleanly. People who work all day in one creative application describe the ring as the thing they now miss on other mice, while people who mostly answer email describe it as a novelty they configured once and forgot. Complaints cluster on Options+ itself, which owners report as heavy, occasionally slow to reconnect after sleep, and prone to needing a sign-in it did not need last week.

Logitech MX Master 3S: the one most desks should buy

This is the mouse that made the category. The same 8,000 DPI Darkfield sensor tracks on glass and on the shiny bit of a desk that defeats cheaper optical sensors, the MagSpeed wheel switches from ratchet to free-spin when you flick it hard, and the quiet clicks mean you can work in a room where somebody else is asleep or on a call. Logitech claims about 90% less click noise than the older MX Master 3, and owners consistently describe the difference as the reason they stopped hearing their own mouse.

For Zoom plus Slack plus Excel, the two mice feel the same in the hand. The horizontal thumb wheel scrolls sideways across wide spreadsheets, the gesture button under the thumb rest can be mapped to desktop switching, and Logitech Flow moves the cursor and the clipboard between two computers on the same network. That last feature is the one people forget about until they own a dock and two machines, and it pairs well with a proper dual-monitor docking station setup.

Weaknesses are real and worth knowing before you order. The body is large and strongly right-handed, the side buttons sit where a smaller thumb cannot reach both comfortably, and the thumb wheel has a stiffer action than the main wheel, which some owners never warm to.

What owners say

The recurring praise is battery behaviour: owners report charging it rarely enough that they forget where the cable is, which lines up with Logitech’s up-to-70-days claim. The recurring complaint is size, followed by the same Options+ grumbles the MX Master 4 attracts, since both mice use the same software. A smaller group reports the MagSpeed wheel developing a faint rattle or uneven ratchet feel after long use, which is worth checking inside your return window.

Head-to-Head

Scrolling and the thumb wheel: too close to call

Both use the MagSpeed electromagnetic wheel, and both add the horizontal thumb wheel that makes wide spreadsheets bearable. Logitech describes the MX Master 4’s thumb area as reworked, so there may be a small feel improvement, but nothing in the published specs suggests a different scrolling experience. Winner: tie.

Shortcuts: the MX Master 4 wins, with one condition

The Actions Ring plus haptics is a genuinely new input idea, not a spec bump, and no amount of remapping on the 3S reproduces a per-app radial menu. The condition is Logi Options+. No software, no ring, no advantage. Winner: MX Master 4.

Click noise and buttons: the MX Master 3S holds its ground

Quiet clicks came in with the 3S and remain one of the best things about it for shared rooms and recorded calls. The MX Master 4 keeps quiet clicks rather than improving on them, so there is nothing to gain here by paying more. Winner: tie, which makes it a win for the cheaper mouse.

Battery, charging and receivers

Logitech quotes up to 70 days on a full charge for both, and both charge over USB-C. The MX Master 4’s Logi Bolt receiver is USB-C rather than USB-A, which is the right call on a modern laptop and a small nuisance on an older desktop. Winner: MX Master 4, narrowly, and only if your ports agree.

Comfort for smaller hands: neither of them

Both are large, tall, right-handed mice with a pronounced thumb rest, and at roughly 141 g and 150 g respectively they are not light. If you have tried an MX Master in a shop and found it too big, the newer one will not fix that. Winner: the MX Anywhere 3S, which is a different mouse for a reason.

Who Should Buy Which

Buy the Logitech MX Master 4 if:

• You spend most of your day in one heavy application and already keep a mental list of keyboard shortcuts for it.
• You can install Logi Options+ on the machine you actually work on.
• Your laptop is USB-C only and you want the receiver to plug straight in.
• You want the current flagship and the price gap is not a factor.

Buy the Logitech MX Master 3S if:

• Your day looks like browser tabs, video calls, documents and spreadsheets.
• You want quiet clicks, glass tracking and a battery you charge every couple of months.
• You would rather spend the difference on a better keyboard or webcam, both of which change more about a desk than a mouse does.
• You are replacing an MX Master 2S or older, where the jump is large either way.

Skip both if:

• Your hand is on the smaller side or you travel with your mouse. Get the MX Anywhere 3S.
• You already own an MX Master 3S and it works. There is no sensor, scroll or battery reason to move, and that is unusual for a flagship refresh.
• You need a gaming mouse. Weight and polling rate matter there, and neither of these is built for it.

FAQ

Does the Actions Ring work without Logi Options+ installed?

No. The ring is drawn on screen by the software and configured per application inside it, so on a computer where you cannot install Options+ the MX Master 4 behaves like a standard multi-button mouse. Basic clicking, scrolling and Bluetooth pairing all still work, but the feature you paid extra for does not. Check your work laptop’s software policy before you buy.

Is the MX Master 3S still being sold now that the 4 is out?

It was still widely listed as of this writing, and Logitech has a long history of keeping the previous MX Master in the lineup at a lower price rather than retiring it. Plenty of people weighing up the Logitech MX Master 4 vs MX Master 3S are really asking how long that window stays open. When a flagship refresh adds software features and leaves the sensor alone, the outgoing model becomes the value pick of the category almost overnight.

Bluetooth or the Logi Bolt receiver?

Use the Bolt receiver on your main desk if you have a free port, since a dedicated wireless link is generally steadier than a crowded Bluetooth radio and it works in a BIOS screen where Bluetooth does not. Use Bluetooth for the second and third devices through Easy-Switch, which is where both mice earn their keep. If you pair with a tablet or a Mac mini across the desk, my Logitech K380 notes on multi-device pairing cover the same behaviour on the keyboard side.

Prefer to tap through? The picks as a Web Story

Final Recommendation: Buy Once, Buy Right

Buy the Logitech MX Master 3S. It has the sensor, the scroll wheel, the quiet clicks and the battery life that made this family the default productivity mouse, and the MX Master 4 adds one clever feature on top of a software layer you may not be allowed to install. If your work genuinely lives inside a single demanding application, the Actions Ring is worth the premium and I would not argue with you for a second.

Everyone else should take the cheaper mouse and put the difference toward the part of the desk that actually annoys them. That is where I land on the Logitech MX Master 4 vs MX Master 3S question: the older mouse, the smaller bill, the same work done. Both picks, plus the smaller MX Anywhere 3S, are collected in my Amazon storefront.

Sources

• MX Master 4 Wireless Mouse | Logitech — 8K DPI Darkfield sensor, haptics, Options+, battery claims
• MX Master 3s Wireless Mouse – 8K Optical Sensor | Logitech — 8K DPI sensor, Quiet Clicks, 90% less noise claim
• Buy MX Anywhere 3S Wireless Bluetooth Mouse | Logitech — 8K DPI sensor, quiet clicks, MagSpeed wheel
• Logitech MX Anywhere 3S Mouse Review — confirms no physical horizontal thumb wheel
• Logitech MX Master 4 Review – RTINGS.com — measured review noting shape refinements, no explicit best-mouse claim
• The best wireless mouse in 2026 | Tom's Guide — names MX Master 4 the best wireless mouse right now
• The Logitech MX Master 4 is everything fans loved… | XDA Developers — confirms 150g vs 141g weight, same 8000 DPI sensor
• Warranty – MX Master 4 – Logitech Support — confirms 2-year limited hardware warranty

If you would rather compare listings side by side, the storefront has all of them on one page.