Call it tactile theater for productivity nerds. Logitech’s new MX Master 4 — the follow-up to the much-loved 3S — brings something you don’t usually expect from an office mouse: a tiny motor that buzzes under your thumb. It’s a playful upgrade, but also one that actually nudges at the way power users navigate complex workflows. If you saw the leaks, none of this will shock you; if you didn’t, the short version is: it vibrates, it opens a radial menu, and you’ll either love the extra nudge or turn it off immediately.

Logitech MX Master 4

The MX Master 4 builds on Logitech’s legacy with haptic technology, customizable Action Rings, and multi-device compatibility for demanding professionals.

$120 at Amazon

$120 at Logitech

$120 at Best Buy

What the haptics actually do

Logitech has put a “Haptic Sense Panel” inside the thumb rest. Press it and the mouse gives a short vibration to summon an on-screen “Actions Ring” — a circular overlay filled with app or system shortcuts you pick in Logi Options+. You can nest rings inside rings, so a single press can become a fast three-step drilldown to the exact command you want. The haptics aren’t trying to make movies feel like a controller — they’re purely contextual cues that confirm actions, like opening the ring, confirming a nested selection, or signalling you’ve switched screens.

Logitech also baked haptics into other features: gestures, Smart Actions (macros and automations), and certain app-level integrations. If you enable a tiny jolt for screen switching, for example, the mouse buzzes when the cursor moves between machines — a low-effort way to stop staring at two screens like a lost astronaut. Wired and The Verge both note that the feature is tightly tied to Logitech’s software and can be tuned or turned off entirely.

The hardware: small tweaks, familiar shape

If you hold an MX Master 3S and the idea of swapping feels optional, you’re not wrong. The overall sculpted silhouette is still the same ergonomic, right-handed hump people rave about. What’s changed: Logan’s designers went for frosted, semi-transparent main buttons for a touch of polish, moved the gesture button off the thumb-rest into a dedicated button near the horizontal scroll wheel, and added a USB-C Logi Bolt transmitter (a welcome move for anyone juggling multiple Logitech Bolt devices). Battery life is claimed at up to 70 days on a charge — though heavy haptic use will cut into that runtime.

If you’re a power user who lives in Adobe apps or spreadsheets, the little ergonomic and connectivity fixes matter. If you’re a gamer? The MX line has never been about low polling rates or ultralight shells; it’s about comfort and workflow. Expect the MX Master 4 to behave like a productivity tool first, a novelty gadget second.

Software is the key (and the catch)

Here’s the rub: the haptics only shine with Logi Options+, Logitech’s customization hub. That app is where you wire up Actions Rings, set haptic intensity (subtle → high), pick which plugins get the tactile treatment, and create Smart Actions. Reviews point out that Logi Options+ is powerful but fairly heavy — it can feel like a lot of software for what’s essentially a hardware nudge. If you don’t want the bloat, you can still use the mouse over Bluetooth or Bolt, but you’ll miss the rings and the haptic flourishes.

Logitech has also talked publicly about opening up tools for developers, so third-party apps can trigger haptics through SDKs. That’s where the idea becomes genuinely interesting: imagine Photoshop giving subtle tactile cues for brush pressure presets, or Premiere nudging you when a clip’s render finishes. For now, the integrations are few but promising.

Is it worth upgrading?

If you own an MX Master 3S and you love it, this won’t feel like a revolution — more like a tasteful facelift with a neat party trick. The people who will feel the change most are new buyers, multi-device professionals who want better feedback when switching machines, and creators who appreciate small, focused UX wins. For others, the haptics are exactly what Logitech seems to intend them to be: a cheeky but useful extra that’s easy to ignore.

Priced around the $120 mark and rolling out in early October, the MX Master 4 is a mid-cycle refresh that knows its audience. It doesn’t try to be a gaming peripheral or a studio instrument; it’s a smarter, slightly more tactile mouse for people who spend long hours at a desk.

Final thought

Haptics in a productivity mouse sounds like something designed to make YouTube videos rumble, but the MX Master 4 uses vibration as punctuation — brief, meaningful, and configurable. It’s a reminder that not every new sensor or motor needs to be about spectacle. Sometimes a little jolt is all it takes to make an interaction feel finished.