Unitree’s As2 Robot Dog Runs at Nearly 12mph, Shrugs Off Rain and Has Enough Battery to Walk Over 20km on a Single Charge

The Unitree As2 is not your typical robot dog. Compact enough to squeeze into spaces where larger machines simply cannot follow, it measures 720 by 378 by 457 millimeters standing upright and tips the scales at just 18 kilograms with the battery fitted, yet it is built to handle the kind of heavy duty work you would not normally expect from something this size.

The As2 moves at speeds of over five meters per second (11.1+ mph) and delivers up to 90 Newton meters of joint torque, giving it the muscle to stay stable under a 65 kilogram (143.3 pound) load or push steadily across uneven ground with 15 kilograms of cargo on its back. Battery life is where things get particularly impressive. The higher end variants will run for over four hours unloaded, and even carrying that 15 kilogram payload it keeps going for more than two and a half hours and covers upwards of 13 kilometers before needing a charge.

The Pro and Edu models carry an IP54 rating, meaning rain, dust, and temperatures anywhere between minus 20 and 50 degrees Celsius are all handled without complaint. Built in lighting and a front facing camera keep things visible in any conditions, and a lidar system clears the path day or night. When person following mode is active it tracks its target with centimeter level accuracy, with side sensors and an onboard eight core CPU working together to keep the movement smooth and consistent. Higher tier models add remote control options and the ability to bolt on additional processing modules as the job demands.

Three variants are on offer, starting with the Air, which handles everyday tasks reliably and serves as the straightforward entry point, while the Pro steps up endurance, speed, as well as weather resistance for more demanding environments. The Edu is aimed squarely at developers who want to build and run their own custom applications on top of the platform. All three share the same core frame, with the hardware scaled to match whatever the job requires.

The As2 is built for a wide range of real world applications, from carrying equipment across difficult terrain and handling delivery routes to conducting industrial inspections and outdoor security patrols. The ability to push through challenging environments without slowing down is one of its strongest selling points. Pricing is handled through direct sales conversations, but early indications suggest it will land well below the six figure territory that most industrial robots occupy. Software updates arrive automatically as well, meaning the machine keeps improving over time without requiring any new hardware.