K-Scale Z-Bot (Zeroth Bot) vs Unitree G1
Generated from the registry · revision 2026-09-26 · openness out of 100
Z-Bot (Zeroth Bot) is 86 cm shorter (46 vs 132 cm) than Unitree G1. Z-Bot (Zeroth Bot) has 5 fewer degrees of freedom (18 vs 23) than Unitree G1. Listed prices: Z-Bot (Zeroth Bot) $999, Unitree G1 $13,500. Openness score: Z-Bot (Zeroth Bot) 90, Unitree G1 40 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM and FW; only Unitree G1 publishes POL. Availability: Z-Bot (Zeroth Bot) diy build, Unitree G1 buy.
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Side by side
■ rows differ| Field | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Unitree RoboticsUnitree G1 | 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 (differs) | 2025 | 2024 | |
| Specifications | |||
| Height (differs) | 46cm | 132cm | −86 cm (-65%) |
| Mass | —unsourced | 35kg | |
| Degrees of freedom (differs) | 18 | 23 | −5 (-22%) |
| Payload | —unsourced | 2kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | 120min | |
| Battery capacity | —unsourced | —unsourced | |
| Price (differs) | 999USD | 13,500USD | −12,501 USD (-93%) |
| Actuators (differs) | 18 servo motors | Unitree in-house electric joint motors | |
| Compute | —unsourced | 8-core CPU; optional Jetson Orin module (EDU) | |
| Sensors (differs) | cameras, IMU (per press) | Depth camera, 3D LiDAR, 4-mic array | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 90/ 100 | 40/ 100 | +50 |
| 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) (differs) | not public | public | |
| Verification level (differs) | L1 | L2 | |
| 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 G1.
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