Unitree’s As2-W puts wheel-leg claims ahead of deployment proof

Unitree company-reported load figures distinguish a 150 kg static load from an approximately 16 kg continuous walking payload. Source: Unitree Robotics.

The operating numbers need tighter definitions

The main specification is not “150 kg payload.” Unitree’s table calls 150 kg the approximate maximum standing load and puts the approximate continuous walking load at 16 kg. That distinction determines whether the machine can actually carry equipment during a route rather than merely support weight while stationary.

The public descriptions do not consistently preserve it. A separate report calls 150 kg a payload, while another launch account says 180 kg without stating the condition. The manufacturer’s 150 kg stationary/16 kg walking split is the clearest available description; neither report supplies an independent carrying test.

Unitree’s own page also gives different range entries for the same broad conditions:

The page does not state a test protocol that reconciles those pairs. Nor do the published outside descriptions resolve it: one report repeats an unloaded range of about 33 km and a loaded range of about 16 km. A prospective buyer would need distance, terrain, speed, temperature, payload and onboard configuration before treating either entry as route planning data.

There are further configuration discrepancies. Unitree lists approximately 25 kg with battery and 16 joint-motor degrees of freedom. One launch account instead describes an approximately 18 kg, 12-motor machine; another repeats the 12-motor description. The first also gives lower stair, slope and vertical-platform figures than Unitree’s headline claims. These may reflect a reporting or configuration mismatch, but the retained evidence does not explain one. The manufacturer’s table is the identified product specification, not an independent measurement.

A price comparison is not yet a procurement comparison

One report places the As2-W at about $36,700 and frames that figure against a broad quoted range for Boston Dynamics’ Spot. It also says US dealer availability is pending. Unitree’s page does not publish a price; it says tax and freight are excluded and directs both variants to sales.

That means the reported figure is not an official, like-for-like procurement price. It cannot establish a cost advantage without the selected version, sensor and compute options, support, freight, taxes and operating requirements. The same report says there are no independent field tests comparing the As2-W with Spot, so the speed and obstacle claims cannot yet establish a superior industrial system either.

What would turn the launch into evidence

The next useful disclosure is a customer deployment with a named configuration and a defined job. It should show the moving payload, route distance, terrain, average and maximum speed, operating time, interventions, downtime and the cost of hardware, support and integration.

Until then, the As2-W is a credible attempt to combine wheels and legs in one compact chassis. Its published material does not yet answer the decision that matters to a buyer: whether the machine can perform a specified job reliably enough, and at a documented total cost, to displace a wheeled vehicle, a conventional quadruped or human work.