Calvin-40 vs Forerunner K2
Humanoid robot spec comparison — Wandercraft vs Kepler Robotics.
Wandercraft
Calvin-40
67 / 100 Robo2u Score
Headless industrial humanoid leveraging exoskeleton balance technology
Kepler Robotics
Forerunner K2
83 / 100 Robo2u Score
Industrial general-purpose humanoid from Kepler Robotics with strong dexterous manipulation
| Spec | Calvin-40 | Forerunner K2 |
|---|---|---|
| Released | 2025 | 2024-10 |
| Status | Pre-order | Production |
| Height | — | 178 cm |
| Payload | 40 kg | 30 kg |
| Degrees of freedom | — | 52 |
| Runtime | — | 480 min |
| Top speed | — | 1.1 m/s |
| Price | — | $30k |
| Robo2u Score | 67 | 83 |
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.
