Unitree AS2 Pro
Unitree AS2 Pro
Powerful Motors, Exceptional Payload
Maximum joint torque: Approx. 90 N·m,
torque-to-weight ratio: Approx. 5 N·m/kg (self-weight: 18 kg).
Ultra-long Endurance Expand Boundaries
Powered by a 648Wh (15,000mAh) high-capacity battery. 4+ hours of runtime unloaded;
2.5+ hours carrying 15kg; walking range exceeding 13km.
All-Weather Adaptability, Reliable Operation
IP54 rainproof design, stable performance in complex weather and environments.
Agile Bionic, Exceptional Dynamics
Bionic Embodied Large Model enables agile motions — running, climbing, jumping, etc. Maximum no-load speed reaches 5 m/s,
with the ability to climb 50cm vertical platforms and 40° slopes.
Precise Perception, Intelligent Following
Equipped with an 8-core CPU and a self-developed ISS 3.0 Intelligent Follow System
for centimeter-level positioning and stable company/following
Open Platform, Empowering Innovation
Provides developer-friendly interfaces, supporting large AI models
for embodied AI interaction and autonomous decision-making.
Unitree As2
Maximum Running Speed＞5m/s |
Maximum Joint TorqueApprox. 90 N·m |
Lightweight DesignApprox. 18kg with battery. |
Ultra-High Payload CapacityStanding payload: up to 65kg; continuous walking payload: approx. 15kg. |
Maximum Walking CapabilityForward stair height up to 25cm; slope angle approx. 40°. |
Extended RuntimeUnloaded runtime >4h (>20km); loaded runtime >2.5h (>13km). |
|
Model |
As2 AIR |
As2 PRO |
As2 EDU |
|
|
Mechanical Parameters
|
Size (Standing) |
720mm x 378mm x 457mm |
720mm x 378mm x 457mm |
720mm x 378mm x 457mm |
|
Size (Lying Prone) |
776mm x 378mm x 233mm |
776mm x 378mm x 233mm |
776mm x 378mm x 233mm |
|
|
Weight (with battery) |
Approx. 18kg |
Approx. 18kg |
Approx. 18kg |
|
|
Material |
Aluminum Alloy + High-Strength Engineering Plastic |
Aluminum Alloy + High-Strength Engineering Plastic | Aluminum Alloy + High-Strength Engineering Plastic | |
|
Degrees of Freedom (Joint Motors) |
12 |
12 | 12 | |
|
Joint Bearings |
Industrial-grade crossed roller bearings (high precision, high load capacity) |
Industrial-grade crossed roller bearings (high precision, high load capacity) | Industrial-grade crossed roller bearings (high precision, high load capacity) | |
|
Joint Motors |
Low-inertia, high-speed inner rotor PMSM (enhanced response & heat dissipation) |
Low-inertia, high-speed inner rotor PMSM (enhanced response & heat dissipation) |
Low-inertia, high-speed inner rotor PMSM (enhanced response & heat dissipation) |
|
|
Max Joint Torque |
Approx. 65 N.m |
Approx. 75 N.m | Approx. 90 N.m | |
|
Range of Motion |
Body：-45 ~ 45° Thigh：-115° ~ 200° Shank：-159° ~ -47° |
Body：-45 ~ 45° Thigh：-115° ~ 200° Shank：-159° ~ -47° |
Body：-45 ~ 45° Thigh：-115° ~ 200° Shank：-159° ~ -47° |
|
|
Electrical Characteristics
|
Supply Voltage |
36V ~ 50.4V |
36V ~ 50.4V |
36V ~ 50.4V |
|
Joint Encoder |
Dual encoders |
Dual encoders |
Dual encoders |
|
|
Cooling System |
Local air Cooling |
Local air Cooling |
Local air Cooling |
|
|
Power Supply |
Lithium battery |
Lithium battery |
Lithium battery |
|
|
Wi-Fi 6, Bluetooth 5.2 |
YES |
YES
|
YES |
|
|
Speaker |
YES |
YES |
YES |
|
|
Microphone |
YES |
YES | YES | |
|
Front Light |
YES |
YES | YES | |
|
ISS 3.0 Intelligent side-follow system |
/ |
YES | YES | |
|
GPS |
/ |
Yes (disabled by default; enabled with user authorization) | Yes (disabled by default; enabled with user authorization) | |
|
4G |
/ |
Yes (disabled by default; enabled with user authorization) | Yes (disabled by default; enabled with user authorization) | |
|
HD Camera |
YES |
YES | YES | |
|
Ultra-Wide-Angle LiDAR |
Unitree L2 |
Industrial-grade 64~128-line LiDAR | Industrial-grade 64~128-line LiDAR | |
|
Computing Power |
8-Core high-performance CPU |
8-Core high-performance CPU | 8-Core high-performance CPU | |
|
External Interfaces |
Gigabit Ethernet x 1 SBUS x 1 Power Output：BAT |
Gigabit Ethernet x 1 SBUS x 1 Power Output：BAT |
Gigabit Ethernet x 1 SBUS x 1 Power Output：BAT |
|
| Performance Metrics |
Operating Temperature |
-20℃～50℃ |
-20℃～50℃ |
-20℃～50℃ |
|
Battery Life(Unloaded) [1] |
~2 hours continuous walking, approx. 10km | ~4 hours continuous walking, approx. 20km | ~4 hours continuous walking, approx. 20km | |
|
Battery Life(Loaded) [1] |
With 10kg loaded, >1.5 hours continuous walking, approx. 7km |
With 13kg loaded, >2.5 hours continuous walking, approx. 13km | With 15kg loaded, >2.5 hours continuous walking, approx. 13km | |
|
Max Standing Load |
Approx. 45kg |
Approx. 55kg | Approx. 65kg | |
|
Continuous Walking Load |
Approx. 10kg |
Approx. 13kg | Approx. 15kg | |
|
Slope Walking Capability |
Approx. 30° |
Approx. 40° | Approx. 40° | |
|
Stair Climbing Capability |
20cm |
25cm | 25cm | |
|
Speed |
0–3.0 m/s |
0–3.7 m/s | 0–3.7 m/s (Up to ~5 m/s) | |
|
Protection Rating |
/ |
IP54 | IP54 | |
| Accessories |
Remote Control |
Optional |
YES |
YES |
|
Battery Capacity |
Standard (8000mAh) x1 |
Long Range (15000mAh) x1 | Long Range (15000mAh) x1 | |
|
Charger |
Standard (50.4V 4A) |
Fast Charging (51V 9A) |
Fast Charging (51V 9A) |
|
|
Charging Dock |
/ |
/ |
YES |
|
|
High Computing Power Expansion Dock |
No |
No |
NVIDIA Jetson Orin NX (Optional) |
|
| Other |
Secondary Development [2] |
Not Supported |
Not Supported |
Supported |
|
UniStore Platform |
Supported |
Supported |
Supported |
|
|
Smart OTA Upgrade |
Continuous Upgrades |
Continuous Upgrades |
Continuous Upgrades |
|
|
Warranty [3] |
6 Months |
12 Months |
12 Months |
[1] The above data was obtained under laboratory conditions. Actual performance may vary based on usage conditions, so please refer to your actual experience.
[2] For detailed functions, please refer to the Secondary Development Manual.
[3] For detailed warranty terms, please refer to the Product Warranty Manual.
[4] The above parameters may vary in different application scenarios and different configurations, please contact sales before purchasing.
[5] This quadruped robot has a complex structure and powerful dynamics. Users must keep a safe distance from the robot at all times. Please use with caution.
[6] The product appearance is subject to change. Please refer to the final product.
[7] Some example features shown on this page are under development and testing, and will be made available to users gradually.
[8] This product is a civilian robot. We kindly request that all users refrain from making any dangerous modifications or using the robot in a hazardous manner.
[9] Please visit Unitree Robotics Website for more related terms and policies, and comply with local laws and regulations.
