Logitech MX Anywhere 3S Review: A 99 g Mouse Built to Travel

The Logitech MX Anywhere 3S is a compact wireless mouse intended for travel, with an electromagnetic scroll wheel and multi-device pairing. At a recorded 99 g it is the lightest mouse in this catalogue, and that single number shapes almost every buying decision around it.

This page is built from the specifications recorded against the product, each carrying its source and a verification state that is currently partial. We have not handled this mouse, so there is no claim here about tracking accuracy, click feel or how small it is in the hand. The recorded weight, connectivity, surface support and battery figure are what this review works through.

The case for 99 g

The recorded weight is 99 g. The Logitech Lift records 125 g and the Logitech MX Master 3S records 141 g, so this is the lightest of the three by a clear margin. In a laptop bag, a mouse that weighs less than a tenth of a kilo is a different kind of object from one that weighs nearly a tenth and a half.

Lightness on its own is not a reason to buy, but it is the reason this mouse ends up in the bag rather than on the desk.

Working on glass

Surface support is recorded as Works on glass and most surfaces. That is a specific and useful recorded claim for anyone whose available surface is a glass meeting table or a polished desk, where a sensor that struggles to track simply stops working. It is the clearest recorded difference between this mouse and the two larger models in the catalogue.

Battery and connectivity

Battery life is recorded as Up to 70 days on a full charge, which is the same figure recorded for the MX Master 3S. Connectivity is recorded as Bluetooth Low Energy and Logi Bolt, so the mouse pairs over the same two radio options used across the MX range.

What the recorded data does not cover

The recorded feature list for this mouse is empty. That does not make the description wrong, but it does mean the electromagnetic scroll wheel and the multi-device pairing mentioned in the product description have no separate recorded feature entry behind them. There is also no recorded switch specification and no recorded sensor resolution, so the 8000 DPI and quiet switches recorded for the MX Master 3S are points you can compare there and cannot here.

Who this is for

The MX Anywhere 3S suits someone who moves between desks, works in places where the surface may be glass, and wants the lightest mouse they can carry. It is a poor fit for anyone who wants a sculpted palm rest, a recorded sensor resolution or a documented quiet-switch specification.

Where the alternatives sit

The Logitech MX Master 3S is the comparison, because it records the same 70 day battery figure in a 141 g sculpted body with 8000 DPI, seven buttons and quiet switches. The Logitech Lift is the other alternative, and it takes a different route entirely: 125 g, a 57 degree vertical grip and a recorded small to medium hand size, which addresses wrist angle rather than travel weight.