Optimus Gen 3 vs Walker S2
Humanoid robot spec comparison — Tesla vs UBTECH.
| Spec | Optimus Gen 3 | Walker S2 |
|---|---|---|
| Released | — | 2025-07 |
| Status | Prototype | Deployed |
| Height | 173 cm | 176 cm |
| Payload | 20 kg | 15 kg |
| Degrees of freedom | — | 52 |
| Runtime | — | 120 min |
| Top speed | 3.8 m/s | 2 m/s |
| Price | — | — |
| Robo2u Score | 69 | 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.
