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Robot dogs & quadrupeds

Unitree B2 vs. Unitree A2

Both models belong to the “Robot dogs & quadrupeds” category. The table shows all verified values side by side; the higher or cheaper value in each row is highlighted.

Bottom line

Unitree A2 is cheaper. Unitree A2 is lighter. Unitree B2 can carry more.

Unitree B2Unitree A2
Price$100,000$31,900 – $100,000
StatusAvailableAvailable
ManufacturerUnitree RoboticsUnitree Robotics
CountryChinaChina
Launch20232025
Height65 cm–
Weight60 kg42 kg
Degrees of freedom (total)12–
Payload40 kg25 kg
Top speed21.6 km/h13.3 km/h
Runtime per charge5 hrs5 hrs
Battery capacity2.25 kWh0.91 kWh
LocomotionWheelsQuadrupedal
Ingress protection (IP)IP67IP56 (A2-PRO up to IP67)
Sensors3D LiDAR, 2 depth cameras, 2 optical cameras, LiDAR, Stereo cameras, IMULiDAR (A2-PRO: 2x front/rear), HD camera, Dual 3D LiDAR (front/rear), HD camera with lighting, Microphone
Compute / AI chipIntel Core i5 (platform) + Core i7 (development), optional Orin NX8-core CPU + Intel Core i7 (development)
SDK / programmingUnitree SDK, ROS2–
Data depth83%71%
Unitree B2 – product photoImage: Unitree Robotics

Unitree B2

Unitree Robotics · China · 2023 · Quadrupeds

  • Height: 65 cm
  • Weight: 60 kg
  • Degrees of freedom (total): 12
  • Runtime per charge: 5 hrs
  • Industrial inspection, Energy, Emergency/rescue
AvailableLongest runtime
$100,000€69,020
View spec sheet
Data depth 83%
Unitree A2 – product photoImage: Unitree Robotics

Unitree A2

Unitree Robotics · China · 2025 · Quadrupeds

  • Weight: 42 kg
  • Runtime per charge: 5 hrs
  • Payload: 25 kg
  • Top speed: 13.3 km/h
  • Inspection, Industry, Research
Available
$31,900 – $100,000≈ converted €27,798
View spec sheet
Data depth 71%
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