Unitree As2-W Review: Specs and Uses of the 6 m/s Wheeled Quadruped Robot
Updated: 7 days ago
The Unitree As2-W is the wheeled version of the As2 quadruped, with a driven wheel at the end of each leg. Unitree lists both versions as "Contact Sales". This review covers its specifications, versions and uses.
Quick Verdict
The As2-W is a 25 kg robot that rolls at up to about 6 m/s and still climbs. On 7-inch wheels it covers about 30 km in three hours without load, or carries 16 kg for more than two hours. It keeps the 95 N·m joints of the top As2, so it can lock its wheels and step up 30 cm stairs or climb obstacles of 0.4 to 0.8 m, and it holds a static load of about 150 kg. Industrial LiDAR, IP54 protection and operation from -20 to 55 °C are standard. Two versions exist, X and EDU; the EDU adds a charging dock and compute expansion. Unitree's page gives slightly different range figures in its highlights and its table.
Unitree As2-W at a Glance
Weight: about 25 kg with battery
Speed: up to about 6 m/s
Walking payload: about 16 kg
Endurance: about 3 hours without load
Protection: IP54
Price: on request
Unitree As2-W Technical Specifications
The table below lists the manufacturer's specifications.
Specification | Unitree As2-W |
Manufacturer | Unitree Robotics |
Versions | As2-W X; As2-W EDU |
Size, standing | 721 x 493 x 521 mm |
Weight | About 25 kg with battery |
Joint motors | 16 |
Max joint torque | About 95 N·m |
Wheels | 7-inch |
Speed | 0 to 3.7 m/s; maximum about 6 m/s |
Continuous walking payload | About 16 kg |
Max standing load | About 150 kg, static |
Slope | About 45 degrees |
Stairs | 30 cm |
Max climb height | About 0.4 to 0.8 m |
Endurance without load | About 3 h, about 30 km |
Endurance with 16 kg | More than 2 h |
Battery | 15,000 mAh, 648 Wh |
LiDAR | Industrial 64 to 128 line |
Operating temperature | -20 to 55 °C |
Protection | IP54 |
Warranty | 12 months |
Design and Build Quality
The body is aluminium alloy and engineering plastic, with crossed roller bearings and dual encoders in the joints. A camera, microphone, speaker and front light are built in, with the ISS 3.0 side-follow system.
Programming and Software
Development
Secondary development is supported, with an expansion module of 150 TOPS listed.
Updates and Apps
The robot supports UniStore and over-the-air upgrades.
Connectivity
Wi-Fi 6, Bluetooth 5.2, Gigabit Ethernet and SBUS; GPS and 4G are available and off by default.
Unitree As2-W Applications and Use Cases
Patrol over Distance
Wheels give range on roads and floors; legs handle steps.
Carrying Equipment
16 kg while moving.
Research
A platform for wheel-leg locomotion.
Unitree As2-W Price and Value
Unitree lists both As2-W versions as "Contact Sales" and does not publish a price.
For the company behind the product, read the Unitree Robotics Company Profile: History, Products, Stock Listing and Controversies.
Pros and Cons
Pros
About 6 m/s top speed
About 30 km range
Strong joints at 25 kg weight
Industrial LiDAR and IP54
Development supported on both versions
Cons
Range figures vary on the maker's page
16 kg moving payload
No published price
Who Should Buy the Unitree As2-W?
It fits users who need a fast, light patrol or research platform for mixed ground.
Unitree As2-W FAQ
How much does the Unitree As2-W cost?
Unitree does not publish a price; both versions are listed as "Contact Sales".
How fast is the Unitree As2-W?
Up to about 6 m/s.
How much does the Unitree As2-W weigh?
About 25 kg with battery.
How much can the Unitree As2-W carry?
About 16 kg while moving, and about 150 kg as a static standing load.
How far can the Unitree As2-W travel?
About 30 km in about 3 hours without load.
Can the Unitree As2-W climb stairs?
Yes, with steps of 30 cm.
Is the Unitree As2-W waterproof?
It is rated IP54.
What is the difference between the As2-W X and EDU?
The EDU adds a charging dock and support for high-computing expansion docks.
Specifications are based on manufacturer information and may change.
