Booster K1 vs Cruzr S2
Humanoid robot spec comparison — Booster Robotics vs UBTECH.
UBTECH
Cruzr S2
69 / 100 Robo2u Score
Full-size wheeled service humanoid with a ±170° bending torso and 15kg payload handling
| Spec | Booster K1 | Cruzr S2 |
|---|---|---|
| Released | 2025-10 | 2025 |
| Status | Production | Production |
| Height | 95 cm | 176 cm |
| Payload | — | 15 kg |
| Degrees of freedom | 22 | 44 |
| Runtime | 80 min | — |
| Top speed | 0.4 m/s | 2 m/s |
| Price | $6.0k | — |
| Robo2u Score | 60 | 69 |
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.
