Calvin-40 vs Walker S2
Humanoid robot spec comparison — Wandercraft vs UBTECH.
Wandercraft
Calvin-40
67 / 100 Robo2u Score
Headless industrial humanoid leveraging exoskeleton balance technology
| Spec | Calvin-40 | Walker S2 |
|---|---|---|
| Released | 2025 | 2025-07 |
| Status | Pre-order | Deployed |
| Height | — | 176 cm |
| Payload | 40 kg | 15 kg |
| Degrees of freedom | — | 52 |
| Runtime | — | 120 min |
| Top speed | — | 2 m/s |
| Price | — | — |
| Robo2u Score | 67 | 76 |
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.
