Logitech Mobi Fold Folds in Half for the Pocket, Claims a Month of Battery From a 100-mAh Cell

Logitech has launched the Mobi Fold, its first foldable wireless mouse, a device built around a single mechanical trick: bend it in half and it switches off and shrinks small enough to slip into a pocket. The pitch leans on a statistic from Logitech's own press materials, that 76% of people working on the go own a mouse but don't actually carry it, usually because portable mice are too small, too awkward, or too easy to forget. The Mobi Fold tries to solve the carrying problem without inheriting the ergonomic penalties that come with most travel mice.

The hardware, by the numbers

Open, the Mobi Fold measures 1.3 x 2.24 x 4.8 inches (33 x 57 x 122mm) and weighs 2.8oz (79g). Those dimensions matter because they put it close to a full-size mouse rather than the cramped pucks that dominate the travel category. Folded, it collapses to 0.83 x 2.6 inches (21 x 66mm), roughly the footprint of a thick pen case. The hinge does double duty as the power switch, so folding the body powers it down and unfolding wakes it. Logitech rates the hinge for 15 years of folding cycles, which is the kind of mechanical durability figure that tends to define whether a moving-part product survives daily use or becomes warranty churn.

Underneath sits a PixArt PAW3222 optical sensor rated to 4,000 DPI, shipping with an 800 DPI default. The PAW3222 is a mainstream, low-power optical sensor rather than a gaming-grade unit, and that choice tracks with the device's priorities. A 4,000 DPI ceiling is far below the 26,000-plus DPI flagship sensors found in gaming mice, but for office and travel work the relevant spec is power draw, not headline resolution. PixArt's value here is efficiency, and that feeds directly into the battery claim.

The section that looks like a middle button is not one. It is a scroll trackpad flanked by two configurable buttons, all programmable through Logitech's software. The main buttons are tuned to be quiet, an acknowledgment that a lot of travel computing happens in shared spaces where a clicky mouse is a liability.

Power: a small cell stretched a long way

The battery is the most interesting engineering line on the spec sheet. Logitech fits a 100-mAh cell, which is tiny, smaller than what you'd find in many wireless earbuds, and claims it delivers roughly a month of use on a full charge. The arithmetic only works because of the low-power PAW3222 sensor and Bluetooth 5.0 LE radio, both selected to sip current. Logitech also quotes a fast-charge figure of 22 hours of runtime from a single minute on the USB-C port, the kind of top-up spec that turns charging from a planned event into an afterthought before you head out the door.

That tradeoff, a small battery offset by efficient silicon, is a recurring pattern in mobile peripherals. Shrinking the cell saves weight and volume, which is exactly what a fold-to-pocket product needs, and the efficiency of modern low-power sensors and BLE radios is what makes the small cell viable in the first place. Bluetooth Low Energy is doing real work here, keeping idle and active draw low enough that a 100-mAh battery reads as a month rather than a week.

Connectivity and the Business split

Connectivity is Bluetooth 5.0 LE, with multipoint pairing across up to three devices simultaneously, so the mouse can hop between a laptop, tablet, and phone without re-pairing. There is also a Mobi Fold for Business variant, and the only meaningful difference appears to be the inclusion of a Logi Bolt wireless receiver. Logi Bolt is Logitech's enterprise-oriented secure wireless protocol, which is why the Business version exists as a separate SKU rather than a software unlock: it ships the dongle that IT departments standardize on.

Pricing and the field

The standard Mobi Fold sells for $79.99, 79.99€, or £69.99, in four colorways: lilac, graphite, off-white, and sand. The Business version runs $89.99, 84.99€, or £74.99, and comes only in graphite. You can see the Logitech Mobi Fold on the company's site.

At that price, the obvious comparison is Microsoft's Surface Arc Mouse, which flattens rather than folds and adds both vertical and horizontal scrolling, currently around $85.99 at retail. The two take different mechanical approaches to the same problem, the Arc flexing flat for storage and the Mobi Fold hinging in half, but they land in the same price band and chase the same buyer: the laptop user who wants a real mouse without a bag penalty.

The Mobi Fold's bet is that a near-full-size shape plus a genuinely pocketable folded form factor is enough to convert the three-quarters of mobile workers who currently leave their mouse at home. Whether the hinge holds up to its 15-year rating in practice will be the spec that ultimately matters, but on paper Logitech has matched an efficient sensor and radio to a small battery cleanly enough to make the month-long runtime plausible.