Compare humanoids
Pick two to four robots. Every pair also has its own permanent page, 1,326 in total, generated from the same records.
01
Pick robots
52 humanoidsZ-Bot (Zeroth Bot) is 114 cm shorter (46 vs 160 cm) than Kangaroo. Openness score: Z-Bot (Zeroth Bot) 90, Kangaroo 30 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM and FW. Availability: Z-Bot (Zeroth Bot) diy build, Kangaroo buy.
| Field | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | PAL RoboticsPAL Kangaroo | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | K-Scale Labs | PAL Robotics | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Orphaned | Active | |
| Availability (differs) | DIY build | Buy | |
| Country (differs) | United States | Spain | |
| Year (differs) | 2025 | 2021 | |
| Specifications | |||
| Height (differs) | 46cm | 160cm | −114 cm (-71%) |
| Mass | —unsourced | —unsourced | |
| Degrees of freedom | 18 | —unsourced | |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | 976Wh | |
| Price | 999USD | —unsourced | |
| Actuators (differs) | 18 servo motors | custom linear actuators with integrated force sensors | |
| Compute | —unsourced | 2x Intel i7 PCs, optional NVIDIA Jetson | |
| Sensors (differs) | cameras, IMU (per press) | 4x RGB-D, 1 kHz IMU, optional F/T sensors | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 90/ 100 | 30/ 100 | +60 |
| CAD (25) (differs) | public | not public | |
| Bill of materials (20) (differs) | public | not public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | public | not public | |
| Software (10) | public | public | |
| Trained policies (10) | not public | not public | |
| Verification level | L1 | L1 | |
| Sources (differs) | 3 | 2 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
03
Best-documented pairs
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