Cruzr S2 vs RB-Y1
Humanoid robot spec comparison — UBTECH vs Rainbow Robotics.
UBTECH
Cruzr S2
69 / 100 Robo2u Score
Full-size wheeled service humanoid with a ±170° bending torso and 15kg payload handling
Rainbow Robotics
RB-Y1
63 / 100 Robo2u Score
Wheeled dual-arm humanoid manipulator for AI research labs
| Spec | Cruzr S2 | RB-Y1 |
|---|---|---|
| Released | 2025 | 2024-05 |
| Status | Production | Production |
| Height | 176 cm | 140 cm |
| Payload | 15 kg | 6 kg |
| Degrees of freedom | 44 | 24 |
| Runtime | — | 180 min |
| Top speed | 2 m/s | 1.5 m/s |
| Price | — | $80k |
| Robo2u Score | 69 | 63 |
Highlighted = better on that spec (lower is better for price and weight; newer for release). The Robo2u Score is a transparent composite — see the Humanoid Showdown for the full field.
