Powerful Motors, Exceptional Payload
Maximum joint torque: Approx. 90 N·m,
torque-to-weight ratio: Approx. 5 N·m/kg (self-weight: 18 kg).
Unitree As2
Compact Size Industrial Capability
Dynamic Performace ≈ 2×Go2
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Continuous OTA Software Upgrade and Update
- Ultra-long Endurance Expand BoundariesPowered 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 OperationIP54 rainproof design, stable performance in complex weather and environments.
- Agile Bionic, Exceptional DynamicsBionic 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 Torque
Approx. 90 N·m
Lightweight Design
Approx. 18kg with battery.
Ultra-High Payload Capacity
Standing payload: up to 65kg;
continuous walking payload: approx. 15kg.
Maximum Walking Capability
Forward stair height up to 25cm;
slope angle approx. 40°.
Extended Runtime
Unloaded runtime >4h (>20km);
loaded runtime >2.5h (>13km).
Unitree As2 Parameter
Model
Price（Tax and freight excluded）
As2 AIR
Contact Sales
As2 PRO
Contact Sales
As2 EDU
Custom Industry Solutions
Contact Sales
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)
~2 hours continuous walking, approx. 10km
~4 hours continuous walking, approx. 20km
~4 hours continuous walking, approx. 20km
Battery Life(Loaded)
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
Not Supported
Not Supported
Supported
UniStore Platform
Supported
Supported
Supported
Smart OTA Upgrade
Continuous Upgrades
Continuous Upgrades
Continuous Upgrades
Warranty
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.
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.
Please visit Unitree Robotics Website for more related terms and policies, and comply with local laws and regulations.