Unitree A2-W
Wheel Shadow
Speed Across the Field
Continuous OTA Software Upgrade and Update

Dual-Sided Perception

Zero Blind Spots Greater Accuracy

2 industrial LiDARs (front & rear) , HD camera + front light to detect the environment ahead

Dual Battery System

「Hot-Swappable Dual Batteries · Unlimited Runtime」: Seamless Battery Swap, Uninterrupted Mission

Dual-battery parallel design: swap without stopping, the eternal heart for extreme missions

Reliable triple power system guarantees from -20°C to 55°C

  • Model

    Price(Tax and Shipping cost excluded)

  • A2-W

    Contact Sales

  • A2-W PRO

    Custom Industry Solutions

    Contact Sales

Mechanical Parameters
  • Size (Standing)

    900mm x 440mm x 625mm

    900mm x 440mm x 625mm

  • Size (Lying Prone)

    930mm x 685mm x 210mm

    930mm x 685mm x 210mm

  • Tyre size

    Diameter:190mm;Width:51mm

    Diameter:190mm;Width:51mm

  • Material

    Aluminum Alloy + High-Strength Engineering Plastic

    Aluminum Alloy + High-Strength Engineering Plastic

  • Weight (without battery)

    About 45kg

    About 45kg

  • Weight (with battery)

    About 52kg

    About 52kg

  • Degrees of Freedom (Joint Motors)

    16

    16

  • Joint Bearings

    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)

  • Max Joint Torque

    About 180 N.m

    About 180 N.m

  • Range of Motion

    body:-58~58°

    thigh:-134°~180°/-89°~225°

    shank:-158°~-30°

    body:-58~58°

    thigh:-134°~180°/-89°~225°

    shank:-158°~-30°

Electrical Characteristics
  • Supply Voltage

    50.4V

    50.4V

  • Joint Encoder

    Dual encoders

    Dual encoders

  • Cooling System

    Local air Cooling

    Local air Cooling

  • Power Supply

    Dual slots, dual batteries

    Dual slots, dual batteries

  • Battery Capacity

    Single Battery 9000mAh(453.6Wh)

    Dual Batteries 18000mAh(907.2Wh)

    Single Battery 9000mAh(453.6Wh)

    Dual Batteries 18000mAh(907.2Wh)

  • Wi-Fi 6, Bluetooth 5.2

    YES

    YES

  • Speaker

    YES

    YES

  • Microphone

    Microphone array

    Microphone array

  • Front Light

    YES

    YES

  • Wireless vector follow module

    / (Optional)

    YES (Expanded)

  • GPS

    / (Optional)

    YES (Expanded)

  • 4G

    / (Optional)

    YES (Expanded)

  • Sensor

    LiDAR × 1 + HD Camera × 1

    LiDAR × 2 + HD Camera × 1

  • Control & Compute

    Standard: 8-Core high-performance CPU (platform) + Intel Core i7 (user development)

    Standard: 8-Core high-performance CPU (platform) + Intel Core i7 (user development)

    Optional: high computing power expansion dock

  • External Interfaces

    RS485 x 2

    CAN x 2

    Gigabit Ethernet x 2

    USB3.0-TypeC(8-Core CPU) x 2

    USB3.0-TypeC (Intel Core i7)x2

    Power Output:12V / 24V / BAT

    RS485 x 2

    CAN x 2

    Gigabit Ethernet x 2

    USB3.0-TypeC(8-Core CPU) x 2

    USB3.0-TypeC (Intel Core i7)x2

    Power Output:12V / 24V / BAT

Performance Metrics
  • Operating Temperature

    -20℃~55℃

    -20℃~55℃

  • Battery Life

    No Load:

    >3.5 hours continuous walking, approx. 35km

    With 25kg Load:

    >1.5 hours continuous walking, approx. 15km

    No Load:

    >3.5 hours continuous walking, approx. 35km

    With 25kg Load:

    >1.5 hours continuous walking, approx. 15km

  • Max Standing Load

    About 100kg

    About 100kg

  • Continuous Walking Load

    About 25kg

    About 25kg

  • Slope Walking Capability

    About 45°

    About 45°

  • Stair Climbing Capability

    Max Step Height: 30cm

    Max Step Height: 30cm

  • Max Climb Height

    About 0.5~1m

    About 0.5~1m

  • Speed

    0–3 m/s (Up to ~ 6 m/s)

    0–3 m/s (Up to ~ 6 m/s)

  • Ingress Protection Rating

    IP56

    IP56–IP67 (Core components rated IP67)

Other
  • Smart OTA Upgrade

    Continuous Upgrades

    Continuous Upgrades

  • Secondary Development

    Supported

    Supported

  • Warranty

    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.