Logitech M720 Triathlon VS Logitech MX Master 3S

Quick Take

Choosing between the Logitech M720 Triathlon and the Logitech MX Master 3S comes down to a few key trade-offs in the mice category. Both are flagship contenders for 2026, but they target subtly different buyers. The Logitech M720 Triathlon retails for $39.99 and earns a 4.6/5 score in our research synthesis, while the Logitech MX Master 3S comes in at $99.99 with a 4.8/5 rating — a 0.2-point gap that's smaller than it looks on paper.

If price is your tiebreaker, the Logitech M720 Triathlon saves you $60.00 compared to the Logitech MX Master 3S. If you optimize for raw user satisfaction and reviewer ratings, the Logitech MX Master 3S edges ahead. The rest of this comparison breaks down where each one wins, who it's right for, and how they hold up in real-world day-to-day use.

Who Should Buy the Logitech M720 Triathlon?

The Logitech M720 Triathlon is the right call for buyers who prioritize multi-device switching, long battery life, hyper-fast scroll wheel, bluetooth and usb receiver support above all else. Its standout strength — Easy switching across three devices — is the kind of advantage you notice on day one and continue to appreciate months later.

It's also a strong fit if you value Excellent battery life. Combined with Comfortable full-size shape, the Logitech M720 Triathlon feels like a product designed by a team that obsesses over the details that matter most in the mice category.

The trade-off is that Not as premium as MX Master models. If that compromise doesn't bother you, this is one of the most well-rounded picks you can make at the $39.99 price point.

Who Should Buy the Logitech MX Master 3S?

The Logitech MX Master 3S is built for the buyer who wants quiet tactile clicks, magspeed electromagnetic scroll wheel, multi-device pairing, usb-c charging. Where the Logitech M720 Triathlon optimizes for one philosophy, the Logitech MX Master 3S bets on a different combination of priorities — and the result is a product that wins decisively for a specific audience.

Its biggest advantage is Ergonomic shape stays comfortable through long work sessions. That's backed up by MagSpeed wheel is excellent for long documents, spreadsheets, and editing timelines, which is exactly what you want at this price point.

The catch: Large right-handed shape will not suit every grip or left-handed user. For most buyers, that's a perfectly acceptable trade for what you get back — especially at $99.99.

Real-World Use Cases

In daily use, the Logitech M720 Triathlon shines for the kind of buyer who leans on Easy switching across three devices every day. Think long sessions where the difference between "good" and "great" actually changes how you feel about the product. Great office value

The Logitech MX Master 3S, by contrast, is the better pick for the user whose week looks more like Ergonomic shape stays comfortable through long work sessions. It handles those scenarios with more confidence than the Logitech M720 Triathlon, and Multi-device pairing makes it easy to bounce between a desktop and laptop.

Travel, commuting, work-from-anywhere, and weekend use all play out slightly differently between the two. The Logitech M720 Triathlon is the safer pick if you don't want to think about the purchase at all — set it up once and it just works. The Logitech MX Master 3S rewards owners who are willing to dig into the settings to extract that extra 10–15% of performance.

Performance & Build Quality

From a pure performance standpoint, both products land in the upper tier of the mice category. The Logitech M720 Triathlon earns its 4.6/5 with Excellent battery life, while the Logitech MX Master 3S (4.8/5) counters with MagSpeed wheel is excellent for long documents, spreadsheets, and editing timelines.

Build quality on both is what you'd expect at this tier — premium materials, careful fit and finish, and a feel-in-the-hand that justifies the price. Neither feels cheap, neither flexes when you handle it, and both should comfortably last 3–5 years of daily use without major issues.

Where they part ways is in feel during extended sessions. Comfortable full-size shape, while the Logitech MX Master 3S brings Multi-device pairing makes it easy to bounce between a desktop and laptop. Owner reports we've cross-referenced converge on the same point — the right one is usually obvious within five minutes in person.

Value Analysis

On pure dollars, the Logitech M720 Triathlon is the value play at $39.99 — that's $60.00 less than the Logitech MX Master 3S. For shoppers on a tighter budget, that gap can pay for accessories, a case, an extended warranty, or simply stay in your pocket.

But "cheaper" isn't the same as "better value." The Logitech MX Master 3S earns its premium through Ergonomic shape stays comfortable through long work sessions, and if those upgrades match how you actually use the product, the math works out in its favor over a 3-year ownership window.

Our take: if the Logitech MX Master 3S's headline advantage genuinely matters to you, the $60.00 premium is worth it. If you're not sure, the Logitech M720 Triathlon is the smarter starting point — you can always upgrade later, and resale value on top-tier mice stays strong.

The Verdict

Both the Logitech M720 Triathlon and the Logitech MX Master 3S are products we'd recommend without hesitation in 2026 — they're at the top of the mice category for a reason. The right pick depends almost entirely on which compromises you're willing to accept and which strengths you actually use.

Pick the Logitech MX Master 3S if you want the highest user-rated option of the two. Pick the Logitech M720 Triathlon if saving $60.00 is more useful to you than the marginal upgrades the Logitech MX Master 3S brings. And pick whichever one has the feature you'd most miss if it were gone — that's almost always the right answer.

Whichever way you go, both products are backed by mainstream availability and strong reseller markets. Use the affiliate links above to check current pricing on Amazon — flagship mice prices fluctuate week to week, and timing your purchase around a sale can save you another 5–15%.