Rainbow Robotics RB-Y1 vs Unitree H1-2
Generated from the registry · revision 2026-09-26 · openness out of 100
Rainbow Robotics RB-Y1 is 38 cm shorter (140 vs 178 cm) and 61 kg heavier (131 vs 70 kg) than Unitree H1-2. Rainbow Robotics RB-Y1 has 7 fewer degrees of freedom (20 vs 27) and 4 kg less rated payload (3 vs 7 kg) than Unitree H1-2. Openness score: Rainbow Robotics RB-Y1 30, Unitree H1-2 40 (of 100); only Unitree H1-2 publishes POL. Availability for both: buy.
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Side by side
■ rows differ| Field | Rainbow RoboticsRainbow Robotics RB-Y1 | Unitree RoboticsUnitree H1-2 | 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 | 178cm | −38 cm (-21%) |
| Mass (differs) | 131kg | 70kg | +61 kg (+87%) |
| Degrees of freedom (differs) | 20 | 27 | −7 (-26%) |
| Payload (differs) | 3kg | 7kg | −4 kg (-57%) |
| Top speed (differs) | 1.5m/s | 2m/s | −0.5 m/s (-25%) |
| Runtime | —unsourced | —unsourced | |
| Battery capacity (differs) | 1,250Wh | 864Wh | +386 Wh (+45%) |
| Price | —unsourced | —unsourced | |
| 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) | Intel Core i5 standard; i7 or up to 3x Jetson Orin NX optional | |
| Sensors (differs) | Built-in wrist force/torque sensors (v1.2); optional camera | 3D LiDAR, depth camera | |
| 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 (differs) | L2 | L1 | |
| 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 H1-2.
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