Skip to content
SmartBot Labs

Robot dog · Unitree Robotics · China

Unitree B2

Unitree's industrial quadruped: 60 kg, IP67, and 4–6 hours of battery. A Spot alternative with a public price.

Illustration, not a photo

Price

From $100,000

Official price

Listed at $100,000 on Unitree's store. The wheeled B2-W is also listed at $100,000.

Availability

Available now

Listed on Unitree's store; usually sold through sales and distributors.

Unitree store ↗

Last checked October 20, 2026 · confirm before you buy

Versions and prices

VersionPriceNotes
B2$100,000
B2-W (wheeled legs)$100,000

Specs

Weight
About 60 kg with battery
Top speed
Over 6 m/s in special configurations
Load
120 kg+ standing, 40 kg+ walking
Battery life
4–6 h; over 5 h and 20 km walking unloaded
Protection
IP67

Specs as published by Unitree Robotics. We list only figures we could source.

See it move

Official video from Unitree Robotics on YouTube. Demos show what the maker wants you to see.

What to know

The B2 is Unitree's heavy-duty robot dog for inspection, security and research. It is much bigger and tougher than the Go2: IP67 sealed, able to carry over 40 kg while walking, and good for several hours per charge.

At a listed $100,000, it competes with Boston Dynamics' Spot for industrial buyers, with the advantage of a published price.

Good for

  • Industrial inspection
  • Security patrols
  • Research needing a heavy-payload legged robot

Watch out for

  • Industrial price
  • Support and parts depend on your distributor

FAQ

Questions people ask

How much does the Unitree B2 cost?

The Unitree B2 costs From $100,000. Listed at $100,000 on Unitree's store. The wheeled B2-W is also listed at $100,000.

Can you buy the Unitree B2?

Listed on Unitree's store; usually sold through sales and distributors.

How long does the Unitree B2's battery last?

4–6 hours, according to Unitree Robotics. Real-world runtime depends on what the robot is doing.

Receipts

Sources

Other robot dogs