Walker S vs Fourier GR-3
Compare Walker S (UBTECH Robotics) and Fourier GR-3 (Fourier) side by side: degrees of freedom, weight, payload, battery life, actuators, and status.
| Spec | Walker S | Fourier GR-3 |
|---|---|---|
| Manufacturer | UBTECH Robotics | Fourier |
| Category | Humanoid | Humanoid |
| Country | China | China |
| Degrees of freedom | 41 | 43 |
| Weight (kg) | 70 | 71 |
| Battery life (h) | 4 | 3 |
| Payload | 10 kg | About 3 kg per arm |
| Max speed | 1.5 m/s | 6.1 km/h |
| Actuators | High-Torque Brushless Servo Motors | Fourier actuators (peak joint torque 440 N·m) |
| Primary sensor | 3D LiDAR + RGB-D Camera + IMU | Monocular camera + 6-axis IMU |
| Function | Home assistance | Healthcare & assistance |
| Released | 2024 | 2025 |
| Status | Testing | Active |
Verdict
Fourier GR-3 leads on 2 of the 4 weighted dimensions both makers disclose.
Walker S leads on payload (10 kg vs About 3 kg per arm) and battery life (4 h vs 3 h).
Fourier GR-3 leads on degrees of freedom (43 vs 41) and max speed (6.1 km/h vs 1.5 m/s).
Left out because at least one manufacturer does not publish a figure: price.
Walker S
A full-size service humanoid designed for home and commercial environments. Walker S performs household tasks, serves as a receptionist, and interacts with humans through speech and gesture, showcasing UBTECH's latest bipedal locomotion and manipulation.
Fourier GR-3
Fourier's first “care-bot” humanoid, designed for interactive companionship with soft covering materials and a moderate height. About 71 kg and 164 cm, with a hot-swappable battery and about 3 h runtime per Fourier's developer documentation.