Walker S1 (UBTECH) vs AgiBot G2

Walker S1 and AgiBot G2 are both industrial humanoids, but G2 is far heavier and built on wheels. Walker S1 is a 172 cm, 76 kg biped with 41 degrees of freedom and UBTECH's own 250 N·m joints. AgiBot G2 weighs 185 kg, adjusts its height from about 123 to 180 cm and has 26 active degrees of freedom, expandable to 50, including two 7-DoF force-controlled arms and a 3-DoF waist. G2's mass and adjustable height make it a stable workstation robot, while Walker S1 is light enough to walk the line.

Walker S1 walks on two legs and navigates with two-stage semantic VSLAM built from its cameras. AgiBot G2 rolls on an omnidirectional base at up to 1.5 m/s and maps its surroundings with 3D LiDAR SLAM. G2 suits flat factory floors where it moves between stations and then works in place. Walker S1 can move through spaces designed for people, such as the walkways beside an assembly line. Walker S1 reaches 1.4 m/s. Walker S1's mobility type is legged. AgiBot G2's mobility type is wheeled.

Both robots carry dense sensor kits. Walker S1 has RGB-D cameras in its head and chest, stereo and panoramic fisheye cameras, six-axis force sensors in its wrists and ankles and tactile arrays in its hands. AgiBot G2 carries two 3D LiDARs, a stereo camera, three fisheye cameras, RGB-D cameras in its head and wrists, a microphone array and torque sensors. G2's wrist cameras help it see exactly what its hands are doing, while Walker S1's tactile hands let it feel what it grips.

Walker S1 relies on a large language model to plan tasks, learning-based whole-body control to move, and UBTECH's BrainNet to share work with other units. AgiBot G2 runs AgiBot's GO-1 and GE-1 vision-language-action models on NVIDIA Jetson T5000 compute rated at 2,070 TFLOPS. G2 has the more powerful published onboard computer, aimed at fine manipulation. Walker S1's strength is coordinating several robots on one factory floor. Walker S1 is listed as fully Autonomous. AgiBot G2 is listed as semi-autonomous with vision-language-action models. Walker S1's control method is listed as autonomous, works with factory management systems, AMRs and AGVs. AgiBot G2's control method is listed as AI autonomous, remote teleoperation, multimodal voice interaction.

AgiBot G2 runs for about four hours, hot-swaps between two batteries with 1,652 Wh in total, charges in 1.5 hours and can charge itself. Walker S1's battery capacity and runtime are unpublished; UBTECH says only that it charges through a fast-charging port on its back. G2's hot-swapping and self-charging allow near-continuous operation. Ask UBTECH for Walker S1's runtime before comparing the two on uptime. Walker S1 stands 172 cm tall and weighs 76 kg. AgiBot G2 stands 180 cm tall and weighs 185 kg.

Walker S1 is built for car factories, where it has carried totes, sorted parts and helped with quality inspection and assembly at carmakers such as BYD, Geely and Audi-FAW. AgiBot G2 targets sub-millimetre precision assembly, machine tending, industrial kitting and showroom tours. Both are factory robots, but Walker S1 moves material around the line while G2 works precisely at a station. Choose Walker S1 for car-factory handling, inspection and assembly, or AgiBot G2 for precision assembly with near-continuous uptime. Walker S1's listed uses include visual quality inspection, walking while carrying material totes, sorting automotive parts and coordinating with factory conveyor belts. AgiBot G2's listed uses include sub-millimeter precision assembly, hole searching, machine tending and industrial kitting.

Walker S1 runs UBTECH's ROSA 2.0 application framework and connects to factory management systems, AMRs and AGVs. AgiBot G2 runs AgiBot's own AI operating system with support for reinforcement learning and simulation. UBTECH's focus is integration with existing factory systems. AgiBot's is on training new skills in simulation before running them on the robot. Walker S1 has 41 degrees of freedom, carries 15 kg and can deadlift 16 kg. AgiBot G2 has 26 degrees of freedom and carries 5 kg per arm. AgiBot G2 runs for 4 hours per charge and recharges in 1.5 hours.

Walker S1's safety kit is an emergency stop button on its back, six-axis force sensors in its wrists and ankles and tactile sensors in its hands. AgiBot G2 uses real-time force sensing and impedance control in its arms, plus obstacle avoidance and an emergency stop. Both limit the force they apply on contact. G2's 185 kg mass is worth bearing in mind around people, while a walking robot like Walker S1 has to manage its balance. AgiBot G2's sensors include 3D LiDAR, stereo Camera, fisheye Camera and head RGBD Camera.