Astribot S1 vs Tiangong Ultra
Compare Astribot S1 (Astribot) and Tiangong Ultra (Beijing Humanoid Robot Innovation Center) side by side: degrees of freedom, weight, payload, battery life, actuators, and status.
| Spec | Astribot S1 | Tiangong Ultra |
|---|---|---|
| Manufacturer | Astribot | Beijing Humanoid Robot Innovation Center |
| Category | Humanoid | Humanoid |
| Country | China | China |
| Degrees of freedom | Not disclosed | Not disclosed |
| Weight (kg) | 80 | 55 |
| Battery life (h) | 5 | Not disclosed |
| Payload | 5 kg per arm | 15 kg |
| Max speed | 12 km/h | |
| Actuators | ||
| Primary sensor | ||
| Function | Home assistance | High-speed locomotion and task execution |
| Released | 2024 | 2025 |
| Status | Active | Active |
Verdict
Tiangong Ultra leads on 1 of the 1 weighted dimensions both makers disclose.
Tiangong Ultra leads on payload (15 kg vs 5 kg per arm).
Left out because at least one manufacturer does not publish a figure: price, degrees of freedom, max speed and battery life.
Astribot S1
Astribot's dual-arm mobile robot. The maker lists 80 kg, 170 cm and 5 kg per arm, and a battery life of 4 to 6 hours. It does not publish one top speed.
Tiangong Ultra
Tiangong Ultra is a full-size humanoid developed by the Beijing Humanoid Robot Innovation Center. It has appeared in public running and endurance events. The center has not published a full specification sheet, and the 100 m time reported for 2026 could not be confirmed from a primary source, so it is not listed here.