K-Scale Z-Bot (Zeroth Bot) vs Unitree R1
Generated from the registry · revision 2026-09-26 · openness out of 100
Z-Bot (Zeroth Bot) is 77 cm shorter (46 vs 123 cm) than Unitree R1. Z-Bot (Zeroth Bot) has 8 fewer degrees of freedom (18 vs 26) than Unitree R1. Listed prices: Z-Bot (Zeroth Bot) $999, Unitree R1 $5,900. Openness score: Z-Bot (Zeroth Bot) 90, Unitree R1 30 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM and FW. Availability: Z-Bot (Zeroth Bot) diy build, Unitree R1 buy.
01
Side by side
■ rows differ| Field | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Unitree RoboticsUnitree R1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | K-Scale Labs | Unitree Robotics | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Orphaned | Active | |
| Availability (differs) | DIY build | Buy | |
| Country (differs) | United States | China | |
| Year | 2025 | 2025 | |
| Specifications | |||
| Height (differs) | 46cm | 123cm | −77 cm (-63%) |
| Mass | —unsourced | 29kg | |
| Degrees of freedom (differs) | 18 | 26 | −8 (-31%) |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | 60min | |
| Battery capacity | —unsourced | —unsourced | |
| Price (differs) | 999USD | 5,900USD | −4,901 USD (-83%) |
| Actuators (differs) | 18 servo motors | Unitree in-house electric joint motors | |
| Compute | —unsourced | 8-core CPU; optional Jetson Orin (40-100 TOPS) | |
| Sensors (differs) | cameras, IMU (per press) | 4-mic array, monocular or binocular camera, joint encoders | |
| 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 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Z-Bot (Zeroth Bot), Unitree R1.
02