Maximum speed
Special configuration; a practical safety limit applies.
UNITREE · Quadruped robots
Unitree B2-W
Unitree B2-W — Go farther with greater efficiency
Unitree B2-W Go farther with greater efficiency — Unitree B2-W is a device designed with a focus on longer range and improved performance. Its advanced connectivity and software features are intended to keep it up to date during use. The device is designed for production to meet expectations for efficiency, range, and intelligent control.
Agile movement across all types of terrain
In-house developed high-performance joints support dynamic movement. Perception and motor control help maintain balance on steps, slopes, and obstacles; the fast, coordinated response of the joints supports stable walking on grass, stones, and gravel.
High dynamic movement
In-house developed high-performance joints leverage the mobility of complex structures.
Traversing steps, slopes, and obstacles
Perception and motor control help maintain balance across different types of discontinuous terrain.
Traversing grass, stone, and gravel paths
The fast, coordinated response of multiple leg joints supports stable walking on uneven ground.
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Each of the three videos is paired with its own text heading.
Superior durability and high efficiency
The four values highlighted by the manufacturer are speed, range with a 40 kg load, wheel torque, and wheel speed. [1] and [2] are special configurations; in practice, safety limits the speed.
Maximum range with a 40 kg load
Maximum range specified by the manufacturer under the stated load condition.
Maximum wheel torque
Manufacturer value.
Maximum wheel speed
Manufacturer value.
[1] and [2] are achieved in a special configuration; a speed limit applies for safety.
Unitree B2-W — A new-generation intelligent robot
Dimensions, weight, battery, mobility and payload values, operating conditions, IP rating, and control/sensing options. Some functions may require a human operator or secondary development; values may vary depending on the configuration and application conditions.
| Standing dimensions | ≈ 1098 × 550 × 758 mmStanding. |
|---|---|
| Dimensions in lying position | ≈ 950 × 550 × 450 mmLying prone. |
| Weight | ≈85 kg, including batteryTotal. |
| Battery | >2 kWh; 58 VManufacturer values. |
| Maximum speed | 15 km/h [1]Special configuration; safety speed limit applies. |
| Range | Maximum 25 km [2] with a 40 kg load; approximately 30 km unloaded[2] special configuration. |
| Maximum load (standing) | 120 kgManufacturer’s standing load value. |
| Load while walking | >40 kgManufacturer value. |
| Wheel diameter | 225 mmManufacturer value. |
| Maximum wheel speed | 50 rad/sManufacturer value. |
| Maximum wheel torque | 40 N·mManufacturer value. |
| Continuous stair climbing | 20–25 cm stepsManufacturer value. |
| Gradeability | Climbs and descends 40 cm stairs forwardTranslation of the source description. |
| Operating temperature | −20 °C – 55 °CManufacturer value. |
| Climbing angle | >45°Manufacturer value. |
| Ingress protection | IP67Manufacturer value. |
| Control/sensing standard | Intel Core i5 (platform functionality), Intel Core i7 (user development)Manufacturer's standard configuration. |
| Control/sensing optional | Various brands and models; Intel Core i7 or Orin NX; up to 3 devicesOptional configuration; configuration variations apply. |
Retain warnings about custom configurations and application conditions.
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