RB-Y1 vs IGRIS-C
Rainbow Robotics RB-Y1 and Robros IGRIS-C compared on the same basis. Each value shows how sure we are of it, so a reported figure is not read as an official one.
- Height: RB-Y1 140 cm · IGRIS-C 154 cm (14 cm apart)
- Weight: RB-Y1 131 kg · IGRIS-C 56 kg (75 kg apart)
| Item | RB-Y1 | IGRIS-C |
|---|---|---|
| Company | Rainbow Robotics | Robros |
| Stage | On sale | Production |
| Height cm | 140 Official | 154 Official |
| Weight kg | 131 Official | 56 Official |
| Arm reach cm | 60 Official | — |
| Total degrees of freedom | 24 Official | — |
| Arm DoF (per arm) | 7 Official | — |
| Head/neck DoF | 2 Official | — |
| Actuation | Electric Official | — |
| Top speed km/h | 5.4 Official | — |
| Fingers | — | 5 Reported |
| Payload kg | 6 Official | — |
| Battery kWh | 1.25 Official | — |
| Compute unit | Dual-PC design (Robot PC for real-time control + User PC for ROS 2/SDK), with GPU Official | — |
| Sensors | F/T sensors built into both arms (V1.2), vision sensor bracket (camera sold separately) Official | — |
| AI model | No own foundation model — open SDK and ROS 2, learning from demonstration (LfD) via leader arm/VR teleoperation, whole-body and impedance control, URDF/MJCF/USD simulation. Building infrastructure for applying VLA models (multimodal data collection, fine-tuning and inference pipelines, Isaac Sim·MuJoCo sim-to-real) Official | Developing its own VLA model and spatio-temporal memory; plans to release some models and data in H1 2027 Reported |
| SDK & dev tools | RB-Y1 SDK (ROS 2, separate User PC) Official | — |
| Open resources | SDK published (GitHub rainbowrobotics/rby1-sdk), URDF/MJCF/USD Official | — |
| Price | $80,000 Official | — |
| Production & shipments | 130+ units sold cumulatively by the end of 2025 Reported | 36 units built and 18 sold cumulatively (end of 2026-08) Official |