HUBO-2 Plus vs A3 Ultra
Compare HUBO-2 Plus (Rainbow Robotics) and A3 Ultra (AGIBOT) side by side: degrees of freedom, weight, payload, battery life, actuators, and status.
| Spec | HUBO-2 Plus | A3 Ultra |
|---|---|---|
| Manufacturer | Rainbow Robotics | AGIBOT |
| Category | Humanoid | Humanoid |
| Country | South Korea | China |
| Degrees of freedom | 41 | 51 |
| Weight (kg) | 60 | 60 |
| Battery life (h) | 2 | 8 |
| Payload | 10 kg | 5 kg |
| Max speed | 1.2 m/s | 1.8 m/s |
| Actuators | Cable-Driven Joint Actuators | |
| Primary sensor | Stereo Camera + IMU + Force Sensors | LiDAR + RGB-D cameras + fisheye surround view |
| Function | Research & development | commercial service humanoid for reception, tours, patrol and interaction |
| Released | 2011 | 2026 |
| Status | Active | Active |
Verdict
A3 Ultra leads on 3 of the 4 weighted dimensions both makers disclose.
HUBO-2 Plus leads on payload (10 kg vs 5 kg).
A3 Ultra leads on degrees of freedom (51 vs 41), max speed (1.8 m/s vs 1.2 m/s) and battery life (8 h vs 2 h).
Left out because at least one manufacturer does not publish a figure: price.
HUBO-2 Plus
Commercialized KAIST HUBO platform with Samsung's 35% stake. DARPA Robotics Challenge winner lineage. Used by research labs worldwide including MIT and Google.
A3 Ultra
The AGIBOT A3 Ultra is a commercial full-size humanoid robot designed for 24/7 autonomous operation in service environments. It features 700 TOPS compute, 360° perception with LiDAR and multi-camera systems, and supports tasks like reception, guidance, and inspection.