Walker S2 vs Z-Bot
Humanoid robot spec comparison — UBTECH vs K-Scale Labs.
| Spec | Walker S2 | Z-Bot |
|---|---|---|
| Released | 2025-07 | 2025 |
| Status | Deployed | Pre-order |
| Height | 176 cm | 46 cm |
| Payload | 15 kg | — |
| Degrees of freedom | 52 | 18 |
| Runtime | 120 min | — |
| Top speed | 2 m/s | — |
| Price | — | $999 |
| Robo2u Score | 59 | 48 |
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.
