Rainbow Robotics RB-Y1 vs Unitree G1
Generated from the registry · revision 2026-09-26 · openness out of 100
Rainbow Robotics RB-Y1 is 8 cm taller (140 vs 132 cm) and 96 kg heavier (131 vs 35 kg) than Unitree G1. Rainbow Robotics RB-Y1 has 3 fewer degrees of freedom (20 vs 23) and 1 kg more rated payload (3 vs 2 kg) than Unitree G1. Openness score: Rainbow Robotics RB-Y1 30, Unitree G1 40 (of 100); only Unitree G1 publishes POL. Availability for both: buy.
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Side by side
■ rows differ| Field | Rainbow RoboticsRainbow Robotics RB-Y1 | Unitree RoboticsUnitree G1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Rainbow Robotics | Unitree Robotics | |
| Class (differs) | Wheeled humanoid | Humanoid | |
| Status | Active | Active | |
| Availability | Buy | Buy | |
| Country (differs) | South Korea | China | |
| Year | 2024 | 2024 | |
| Specifications | |||
| Height (differs) | 140cm | 132cm | +8 cm (+6%) |
| Mass (differs) | 131kg | 35kg | +96 kg (+274%) |
| Degrees of freedom (differs) | 20 | 23 | −3 (-13%) |
| Payload (differs) | 3kg | 2kg | +1 kg (+50%) |
| Top speed | 1.5m/s | —unsourced | |
| Runtime | —unsourced | 120min | |
| Battery capacity | 1,250Wh | —unsourced | |
| Price | —unsourced | 13,500USD | |
| Actuators (differs) | Rainbow in-house joint modules | Unitree in-house electric joint motors | |
| Compute (differs) | Dual-PC (real-time robot PC + user PC with ROS 2) | 8-core CPU; optional Jetson Orin module (EDU) | |
| Sensors (differs) | Built-in wrist force/torque sensors (v1.2); optional camera | Depth camera, 3D LiDAR, 4-mic array | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 30/ 100 | 40/ 100 | −10 |
| CAD (25) | not public | not public | |
| Bill of materials (20) | not public | not public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) | not public | not public | |
| Software (10) | public | public | |
| Trained policies (10) (differs) | not public | public | |
| Verification level | L2 | L2 | |
| Sources | 2 | 2 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Rainbow Robotics RB-Y1, Unitree G1.
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