# SpotMini, Spot's little brother: 25 kg, an arm and, according to Boston Dynamics, its quietest robot

> Boston Dynamics describes SpotMini on its official page as a small four-legged robot built to find its place in an office or a home.

Published on 2026-10-13

According to the manufacturer, SpotMini weighs 25 kg, or 30 kg with its arm.

The robot is fully electric. Boston Dynamics quotes around 90 minutes of battery life per charge, depending on what it is doing, and says it is the quietest robot the company has built.

According to the company, it keeps all the mobility of its big brother, Spot, and adds an arm with 5 degrees of freedom to grasp and manipulate objects.

To find its bearings and manipulate objects while moving, it relies on stereo cameras, depth cameras, an inertial measurement unit and position and force sensors in the legs.

## Sources

- [Boston Dynamics (official product pages)](https://web.archive.org/web/20180905032337/https://www.bostondynamics.com/spot-mini)

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