M-Bot vs Walker S1
Humanoid robot spec comparison — K-Scale Labs vs UBTECH Robotics.
UBTECH Robotics
Walker S1
54 / 100 Robo2u Score
Industrial humanoid working on automotive assembly lines
| Spec | M-Bot | Walker S1 |
|---|---|---|
| Released | 2025 | 2024-10 |
| Status | Prototype | Deployed |
| Height | 70 cm | 172 cm |
| Payload | — | 15 kg |
| Degrees of freedom | — | 41 |
| Runtime | — | 120 min |
| Top speed | — | 0.83 m/s |
| Price | $3k | — |
| Robo2u Score | 47 | 54 |
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.
