Autonomous inspection is the killer app for legged robots, and the math is getting hard to ignore.

The Unitree B2-W specification sheet is dense with numbers. Here are the ones that actually change your buying decision, explained in plain terms.

At a glance

SpecificationUnitree B2-W
Weight60 kg
Top speed10 m/s
Payload40 kg
Battery life4–5 h
Height / size70 cm
Ingress protectionIP67
Degrees of freedom12+
Price from$20,000

Weight and size

At 60 kg and 70 cm tall, the Unitree B2-W is portable enough to lift into a vehicle yet stable under load. Size drives where it fits: doorways, lifts and confined spaces.

Speed and agility

A top speed of 10 m/s covers ground between checkpoints quickly, while reinforcement-learning gaits keep it upright on stairs, rubble and slopes.

Payload

40 kg of payload is the budget for your sensors, a small arm or a delivery box. Plan the mount and the weight before you buy the accessories.

Battery and runtime

4–5 h of runtime is realistic for mixed work; keep a spare pack for continuous coverage. Runtime drops with speed and payload, so test against your real route.

Ingress protection

Rated IP67, the Unitree B2-W handles the working environment accordingly. Match this to where you will actually run it.

Frequently asked questions

Do the numbers include payload?
No. Payload, speed and runtime interact; the sheet lists them separately and real life is the combination.

Are specs identical worldwide?
Small batch and regional variations happen; confirm the current sheet with your supplier before purchase.

Looking for a verified supplier and a documented import plan? Unitree B2-W Get the current spec sheet Unitree B2-W sensors and perception explained Unitree Go2-W payload and payload mounts Unitree R1 sensors and perception explained.

Specifications are publicly reported and approximate; exact figures depend on configuration, region and production batch. Confirm the current sheet with your supplier before purchase.