The Unitree A2 is a medium-size industrial quadruped robot dog weighing about 42 kg, delivering over 5 hours / 20 km unloaded endurance and a 25 kg continuous walking payload (up to ~100 kg standing). Built for logistics, inspection, and rescue with hot-swappable dual batteries, rugged terrain capability, and an open platform for secondary development.
The Unitree A2 Quadruped Robot Dog is a premium mobile hardware platform engineered as a lighter, faster, and tougher industrial-grade solution for demanding real-world applications. Standing at 820 mm × 440 mm × 570 mm and weighing approximately 42 kg with batteries (about 35 kg without), it features 12 degrees of freedom powered by low-inertia high-speed inner-rotor PMSM joint motors delivering up to roughly 180 N·m of torque. Its dual hot-swappable battery system (two 9000 mAh / 453.6 Wh units for a total of 907.2 Wh) enables continuous operation—more than 5 hours or approximately 20 km unloaded, and more than 3 hours or about 12.5 km with a 25 kg load—while supporting seamless battery swaps without stopping the mission. A reliable triple power system ensures operation from -20 °C to 55 °C.
Equipped with an industrial LiDAR and HD camera plus front light, the A2 provides strong environmental perception for obstacle avoidance and navigation across complex terrain. It handles slopes of about 45°, stairs with 30 cm step heights, and climb heights of 0.5–1 m, with speeds of 0–3.7 m/s (up to ~5 m/s). The platform includes Wi-Fi 6, Bluetooth 5.2, a microphone array, speaker, and front light, along with extensive interfaces (RS485, CAN, Gigabit Ethernet, USB 3.0 Type-C) and computing power from an 8-core high-performance CPU plus an Intel Core i7 for user development. It supports continuous OTA software upgrades, secondary development via SDK, and carries an IP56 rating. Ideal for logistics, industrial inspection, and emergency rescue, the A2 is an open platform ready for rapid customization. A wheel-leg option is also available for enhanced performance on mixed surfaces.
Compared with the Unitree A2 Pro, the standard A2 offers the same core mechanical performance, payload, endurance, and battery system but with a single LiDAR (versus dual front-and-rear LiDARs on the Pro), optional rather than expanded GPS/4G/wireless vector-follow modules, and an IP56 rating (versus IP56–IP67 with core components at IP67 on the Pro). This makes the standard A2 an excellent entry point for many industrial and development applications where the Pro's enhanced perception and connectivity are not required.
