B2-W vs Quaddle
Quadruped robot spec comparison: Unitree vs Petoi.
Unitree
B2-W
73 / 100 Robo2u Score
Wheeled-leg industrial quadruped blending rolling speed with legged all-terrain mobility
Petoi
Quaddle
50 / 100 Robo2u Score
Palm-sized 4-servo open-source robot dog kit, Kickstarter funded, shipping December 2026; Builder price shown
| Spec | B2-W | Quaddle |
|---|---|---|
| Released | 2024-12 | 2026-09 |
| Status | Production | Pre-order |
| Payload | 40 kg | n/a |
| Weight | 85 kg | 0.17 kg |
| Degrees of freedom | 12 | 4 |
| Runtime | 300 min | n/a |
| Top speed | 5.56 m/s | n/a |
| Price | n/a | $179 |
| Robo2u Score | 73 | 50 |
Highlighted = better on that spec (lower is better for price and weight; newer for release). The Robo2u Score is a transparent composite: see the Quadruped Robots for the full field.
