Fourier N1 vs Rainbow Robotics RB-Y1
Generated from the registry · revision 2026-09-26 · openness out of 100
Fourier N1 is 10 cm shorter (130 vs 140 cm) and 93 kg lighter (38 vs 131 kg) than Rainbow Robotics RB-Y1. Fourier N1 has 3 more degrees of freedom (23 vs 20) than Rainbow Robotics RB-Y1. Openness score: Fourier N1 85, Rainbow Robotics RB-Y1 30 (of 100); only Fourier N1 publishes CAD, BOM and POL. Availability for both: buy.
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Side by side
■ rows differ| Field | Fourier (Fourier Intelligence)Fourier N1 | Rainbow RoboticsRainbow Robotics RB-Y1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Fourier (Fourier Intelligence) | Rainbow Robotics | |
| Class (differs) | Humanoid | Wheeled humanoid | |
| Status | Active | Active | |
| Availability | Buy | Buy | |
| Country (differs) | China | South Korea | |
| Year (differs) | 2025 | 2024 | |
| Specifications | |||
| Height (differs) | 130cm | 140cm | −10 cm (-7%) |
| Mass (differs) | 38kg | 131kg | −93 kg (-71%) |
| Degrees of freedom (differs) | 23 | 20 | +3 (+15%) |
| Payload | —unsourced | 3kg | |
| Top speed (differs) | 3.5m/s | 1.5m/s | +2 m/s (+133%) |
| Runtime | 120min | —unsourced | |
| Battery capacity | —unsourced | 1,250Wh | |
| Price | —unsourced | —unsourced | |
| Actuators (differs) | Fourier FSA actuators; URDF effort limits 95 N·m x4, 54 N·m x7, 30 N·m x12 | Rainbow in-house joint modules | |
| Compute | —unsourced | Dual-PC (real-time robot PC + user PC with ROS 2) | |
| Sensors | —unsourced | Built-in wrist force/torque sensors (v1.2); optional camera | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 85/ 100 | 30/ 100 | +55 |
| CAD (25) (differs) | public | not public | |
| Bill of materials (20) (differs) | public | not public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) | not public | not public | |
| Software (10) | public | public | |
| Trained policies (10) (differs) | public | not public | |
| Verification level | L2 | L2 | |
| Sources (differs) | 8 | 2 | |
| Last checked (differs) | 2026-09-25 | 2026-09-24 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Fourier N1, Rainbow Robotics RB-Y1.
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