Logitech MX Master 3S vs MX Master 3: Is the Upgrade Worth It in 2026?

Availability update, August 2026: the older MX Master 3 is no longer sold on Amazon, so its buy links have been removed rather than left to dead-end. The comparison still stands on its own — if you are choosing between the two because you found a 3 second-hand or in another shop, the differences below are exactly what to weigh. The MX Master 3S link is live.

By the FutureFavs editorial team · 2026-07-01 · Research-based buying comparison

Watch this first

What actually changed

Logitech kept the MX Master 3's winning formula and changed three specific things. Everything else — the sculpted shape, the 141 g weight, the MagSpeed electromagnetic scroll wheel, the dedicated horizontal thumb wheel, the gesture button, USB-C charging, and 70-day battery — is identical between the two. Here is the complete list of real differences:

• Quiet clicks. The 3S uses new switches Logitech rates at roughly 90% less click noise. This is the single change you can actually feel and hear, and it's the one that matters for shared offices, libraries, and anyone recording audio near their mouse.
• 8,000 DPI sensor (up from 4,000). The 3S sensor tops out at 8,000 DPI versus the 3's 4,000. Both still track on glass (Darkfield). For most people 4,000 was already more than enough; the higher ceiling mainly helps very high-resolution multi-monitor setups where you want to cross a lot of pixels with a small hand movement.
• Logi Bolt instead of Unifying. The 3S ships with Logitech's newer, more secure and more robust Logi Bolt USB receiver; the 3 came with the older Unifying receiver. Both mice also connect over Bluetooth to up to three devices, so the receiver only matters if you rely on the dongle.

That's it. There is no change to shape, size, weight, button layout, scroll feel, software (both use Logi Options+ with Flow), or battery. If someone swapped the two on your desk without telling you, you would only notice when you clicked.

Head-to-head: the specs

Metric	MX Master 3S	MX Master 3
Click noise	~90% quieter (silent switches)	Standard audible click
Max sensor DPI	8,000 DPI	4,000 DPI
Bundled receiver	Logi Bolt (newer, secure)	Unifying (older)
Sensor type	Darkfield (tracks on glass)	Darkfield (tracks on glass)
Shape & size	Identical	Identical
Weight	141 g	141 g
MagSpeed scroll wheel	Yes	Yes
Horizontal thumb wheel	Yes	Yes
Programmable buttons	7	7
Bluetooth + multi-device	3 devices	3 devices
Logi Options+ / Flow	Yes	Yes
Battery life	70 days	70 days
Charging	USB-C	USB-C
Typical price	~€99–109	~€99 (often discounted)

Which should you buy?

Buying new: get the MX Master 3S

This is the easy case. The 3S launched at the same price the MX Master 3 held, and it is strictly better on the three points that differ — quieter clicks, a higher DPI ceiling, and the newer Logi Bolt receiver — with zero regressions. There is no scenario where you'd deliberately buy a new MX Master 3 over a new 3S unless the 3 is meaningfully cheaper on discount and you genuinely don't care about click noise. For a new purchase, the 3S is the default, and it's the mouse we recommend in our best wireless productivity mouse guide.

Already own the MX Master 3: keep it

If a working MX Master 3 is already on your desk, upgrading is hard to justify. You already have the shape, the scroll wheel, the thumb wheel, the software, and the battery life — the parts that make this line worth owning. The 8,000 DPI sensor is a spec-sheet win most people never feel, and the Logi Bolt receiver only matters if you're actively worried about dongle security. The one exception is quiet clicks: if you share an office, take a lot of recorded calls, or work next to a sleeping baby, the silent switches are a real quality-of-life change and the only reason to consider the swap.

The one reason to upgrade: silent clicks

The quiet-click switch is the only genuinely tangible upgrade, so decide on that alone. If click noise has ever annoyed you or the people around you — open-plan office, podcasting, streaming, shared bedroom — the 3S solves it, and it's worth the (same) price. If click noise has never crossed your mind, the upgrade from a working 3 delivers almost nothing you'll notice day to day.

Pros and cons

Who should buy which

If you...	Choose
Are buying a Master mouse for the first time	MX Master 3S
Already own a working MX Master 3	Keep the 3
Share an office / record calls / need silence	MX Master 3S (quiet clicks)
Run high-res or many monitors	MX Master 3S (8,000 DPI)
Found the 3 heavily discounted and don't mind click noise	MX Master 3 (value)
Care about receiver security (Logi Bolt)	MX Master 3S

Our final verdict

The MX Master 3S is the better mouse and the right new purchase — it improves the three things that changed and costs the same as the 3 did, so there's no reason to buy the older model fresh. Read our full MX Master 3S review for the long-form take on living with it.

But this is one of the rare "upgrades" where the honest advice is often don't. If your MX Master 3 works, you already own everything that makes this line great; the 3S adds a higher DPI ceiling you won't feel and a receiver swap that rarely matters. Upgrade only if silent clicks specifically fix a problem for you. Otherwise, keep the 3 and spend the money elsewhere.

Read more: MX Master 3S full review · MX Master 3S vs MX Anywhere 3S · MX Master 3S vs G Pro X Superlight · Best wireless productivity mouse 2026

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