Engineered Ameca vs Rainbow Robotics RB-Y1
Generated from the registry · revision 2026-09-26 · openness out of 100
Ameca is 47 cm taller (187 vs 140 cm) and 69 kg lighter (62 vs 131 kg) than Rainbow Robotics RB-Y1. Ameca has 41 more degrees of freedom (61 vs 20) than Rainbow Robotics RB-Y1. Openness score: Ameca 0, Rainbow Robotics RB-Y1 30 (of 100); only Rainbow Robotics RB-Y1 publishes SIM and SW. Availability for both: buy.
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Side by side
■ rows differ| Field | Engineered ArtsEngineered Ameca | Rainbow RoboticsRainbow Robotics RB-Y1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Engineered Arts | Rainbow Robotics | |
| Class (differs) | Humanoid | Wheeled humanoid | |
| Status | Active | Active | |
| Availability | Buy | Buy | |
| Country (differs) | United Kingdom | South Korea | |
| Year (differs) | 2021 | 2024 | |
| Specifications | |||
| Height (differs) | 187cm | 140cm | +47 cm (+34%) |
| Mass (differs) | 62kg | 131kg | −69 kg (-53%) |
| Degrees of freedom (differs) | 61 | 20 | +41 (+205%) |
| Payload | —unsourced | 3kg | |
| Top speed | —unsourced | 1.5m/s | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | 1,250Wh | |
| Price | —unsourced | —unsourced | |
| Actuators (differs) | Electric; 27 DOF head/face, 34 DOF upper body | Rainbow in-house joint modules | |
| Compute (differs) | Embedded robot PC; Tritium robotOS (Linux/Yocto) | Dual-PC (real-time robot PC + user PC with ROS 2) | |
| Sensors (differs) | 2x 8MP eye cameras, binaural mics, 4-ch chest mic, LiDAR safety sensors | Built-in wrist force/torque sensors (v1.2); optional camera | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 0/ 100 | 30/ 100 | −30 |
| CAD (25) | not public | not public | |
| Bill of materials (20) | not public | not public | |
| Sim model (URDF/MJCF) (20) (differs) | not public | public | |
| Firmware (15) | not public | not public | |
| Software (10) (differs) | not public | public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L0 | 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: Ameca, Rainbow Robotics RB-Y1.
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