Unitree B2 W
Wheel-legged industrial quadruped robot
Official price
$100,000
Verified manufacturer source · Jul 8, 2026
Key facts
Values reflect the public record
- Height
- ≈758 mm (standing)Manufacturer confirmed
- Weight
- ≈85 kg (battery included)Manufacturer confirmed
- Payload
- > 40 kg (walking); 120 kg (standing)Manufacturer confirmed
- Degrees of freedom
- 12
- Runtime
- ≈30 km unloaded / max 25 km with 40 kg load (Unitree publishes range, not duration)Manufacturer confirmed
- Max speed
- 15 km/h (≈4.2 m/s, wheeled max; special configuration with security limits)Manufacturer confirmed
Canonical robot record
Overview
The Unitree B2-W is the wheel-legged member of Unitree's industrial B2 quadruped family. By swapping the standard feet for powered wheels, it can roll smoothly and quickly over flat or paved surfaces while keeping the articulated-leg architecture that lets it handle steps, stairs, slopes, and uneven ground. This hybrid locomotion is the robot's defining feature, letting operators trade between speed on roads and agility on obstacles.
Unitree targets the B2-W at industrial and professional use cases such as inspection, patrol, logistics transport, and emergency response, as well as robotics research. The platform carries a sealed, weather-resistant body and a hot-swappable battery so it can keep working through long shifts and in harsh outdoor conditions.
Because of its high price and payload-oriented design, the B2-W is sold to enterprises, integrators, and research institutions rather than hobbyists, and is ordered directly through Unitree's official shop and sales channels.
RoboZaps maintains this record as part of its canonical robotics database. Specs are source-verified where linked; the record compares public facts across manufacturers rather than representing a single robot maker.
- Spec sources
- 3 linked
- Verification
- Partially verified · 10/13 specs source-verified
- Deployment
- Paid Deployment
- Last verified
- Jul 17, 2026
Key Features
- Hybrid wheel-and-leg locomotion that switches between fast rolling on flat ground and legged climbing over stairs and obstacles
- Rugged, weather-sealed chassis suited to demanding industrial and outdoor environments
- High load capacity for carrying payloads during transport, inspection, and logistics tasks
- Hot-swappable battery designed for extended continuous operation
- Onboard high-torque joints and balance control for stability on slippery and uneven terrain
Specifications
Grouped technical data with source detail available on demand.
15 documented values
Connectivity
| Communication | WiFi, 4G, Ethernet Unverified |
|---|
Environment
| IP Rating | IP67Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
|---|---|
| Operating Temperature | -20°C to 55°CManufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
Mechanics
| Degrees of Freedom | 12 Unverified |
|---|---|
| Locomotion | Quadruped (wheel-legged)Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
Performance
| Max Speed | 15 km/h (≈4.2 m/s, wheeled max; special configuration with security limits)Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
|---|---|
| Payload Capacity | > 40 kg (walking); 120 kg (standing)Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
Physical
| Height | ≈758 mm (standing)Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
|---|---|
| Weight | ≈85 kg (battery included)Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
| Width | 450 mm Unverified |
| Depth | 1.10 m Unverified |
Power
| Runtime | ≈30 km unloaded / max 25 km with 40 kg load (Unitree publishes range, not duration)Manufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
|---|
Sensing
| Sensors | LiDAR, stereo cameras, IMU, depth sensors Unverified |
|---|
Software
| ROS Compatible | YesManufacturer confirmedVerified Jul 8, 2026 Unitree Robotics |
|---|---|
| SDK Support | YesManufacturer confirmedVerified Jul 8, 2026 Unitree Robotics (official GitHub) |
Evidence & changelog
Sources behind this record and material corrections made over time.
Pricing evidence & history
$100,000Official price
Current · Verified100000–100000 USD
Observed Jul 8, 2026Unitree Robotics (official shop) - tranche-4 verification
Sources
- Unitree Robotics - tranche-4 verification · Unitree Robotics — cites Height, Weight, Operating Temperature, Locomotion, IP Rating, Max Speed, Battery Life, Payload Capacity
- Unitree Robotics (official GitHub) - tranche-4 verification · Unitree Robotics (official GitHub) — cites SDK Support
- Unitree Robotics - record-surgery-3 verification · Unitree Robotics — cites ROS Compatible
Record changelog
- Payload Capacity: 40 kg changed to > 40 kg (walking); 120 kg (standing) · Jul 8, 2026
tranche-4 verification (corrected): Official: standing load 120 kg, walking load > 40 kg. Bare '40 kg' drops both the '>' and the walking/standing qualifiers.
- Battery Life: 240 min changed to ≈30 km unloaded / max 25 km with 40 kg load (Unitree publishes range, not duration) · Jul 8, 2026
tranche-4 verification (corrected): Official B2-W endurance is published as distance (≈30 km unloaded; 25 km max with 40 kg load; battery > 2 kWh, 58 V), not hours. '240 min' appears bled from B2's 4–
- Max Speed: 6 m/s changed to 15 km/h (≈4.2 m/s, wheeled max; special configuration with security limits) · Jul 8, 2026
tranche-4 verification (corrected): Official B2-W max speed: 15 km/h (noted as special configuration with security limits) = ~4.17 m/s. '6 m/s' is the B2 legged running figure — spec bleed. Press/demo
- Locomotion: Quadruped changed to Quadruped (wheel-legged) · Jul 8, 2026
tranche-4 verification (corrected): B2-W is the wheeled variant: powered wheels (ø225 mm, max wheel speed 50 rad/s, max wheel torque 40 N.m) on quadruped legs. Bare 'Quadruped' hides the distinguishin
- Weight: 60 kg changed to ≈85 kg (battery included) · Jul 8, 2026
tranche-4 verification (corrected): Official: '≈85kg total weight (battery included)'. 60 kg is the B2 figure — spec bleed from the shared page.
- Height: 645 mm changed to ≈758 mm (standing) · Jul 8, 2026
tranche-4 verification (corrected): Official B2-W standing size ≈ 1098 x 550 x 758 mm (wheels raise it). 645 mm is the B2 legged figure — spec bleed. Some retailers still list 745 mm from earlier mate
Media
Manufacturer
Chinese robotics company developing affordable quadruped and humanoid robots for consumer, industrial, and research markets.
- Headquarters
- Hangzhou, China
- Founded
- 2016
