Walker S1 vs Z-Bot
Humanoid robot spec comparison — UBTECH Robotics vs K-Scale Labs.
UBTECH Robotics
Walker S1
54 / 100 Robo2u Score
Industrial humanoid working on automotive assembly lines
| Spec | Walker S1 | Z-Bot |
|---|---|---|
| Released | 2024-10 | 2025 |
| Status | Deployed | Pre-order |
| Height | 172 cm | 46 cm |
| Payload | 15 kg | — |
| Degrees of freedom | 41 | 18 |
| Runtime | 120 min | — |
| Top speed | 0.83 m/s | — |
| Price | — | $999 |
| Robo2u Score | 54 | 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.
