The Unitree A2-W is the wheel-legged industrial quadruped robot dog, combining efficient rolling on flat surfaces with full stepping capability. At ~52kg with batteries, it delivers extended range (~35km unloaded) and high payload for park logistics, inspection, and rescue, with dual hot-swappable batteries and an open development platform.
The Unitree A2-W Quadruped Robot Dog is an industrial-grade mobile platform that merges the agility of a legged robot with the efficiency of a wheeled system. Standing 900mm×440mm×625mm (with 190mm diameter × 51mm wide tires), it weighs about 52kg with batteries (approximately 45kg without) and features 16 degrees of freedom. Powered by the same high-performance low-inertia PMSM joint motors (up to ~180N·m), it achieves speeds of 0–3m/s (up to ~6m/s) and handles 45° slopes and 30cm steps. Its dual hot-swappable batteries (total 907.2Wh) enable more than 3.5 hours or approximately 35km of continuous travel unloaded, and more than 1.5 hours or about 15km with a 25kg load -- longer distances than pure legged models on suitable surfaces thanks to the wheel-leg architecture. Continuous walking load is about 25kg (ideally ~35kg), with a maximum standing load of about 100kg. Operation is supported from -4° to 131°F.
Perception on the standard A2-W includes one industrial LiDAR and an HD camera with front light, complemented by Wi-Fi 6, Bluetooth 5.2, microphone array, speaker, and optional GPS, 4G, and wireless vector follow. It offers the same rich interfaces, 8-core platform CPU plus Intel Core i7 compute, continuous OTA upgrades, and secondary development support as the A2 family, with an IP56 rating. Designed for industrial inspection, park logistics, and emergency rescue, the A2-W excels on mixed or largely flat industrial and outdoor routes where rolling efficiency reduces energy use while retaining full stepping capability for obstacles.
Compared with the Unitree A2-W Pro, the standard model provides identical mechanical design, payload, speed, and endurance but uses a single LiDAR (versus dual front-and-rear LiDARs), treats GPS/4G/wireless vector follow as optional rather than expanded, and carries an IP56 rating (versus IP56–IP67 with core components at IP67 on the Pro). This makes the standard A2-W a highly capable and cost-effective wheeled solution for many logistics and inspection workflows.
