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 humanoidsBooster K1 is 49 cm taller (95 vs 46 cm) than Z-Bot (Zeroth Bot). Booster K1 has 4 more degrees of freedom (22 vs 18) than Z-Bot (Zeroth Bot). Listed prices: Booster K1 $4,999, Z-Bot (Zeroth Bot) $999. Openness score: Booster K1 30, Z-Bot (Zeroth Bot) 90 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM and FW. Availability: Booster K1 buy, Z-Bot (Zeroth Bot) diy build.
| Field | Booster RoboticsBooster K1 | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Booster Robotics | K-Scale Labs | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Active | Orphaned | |
| Availability (differs) | Buy | DIY build | |
| Country (differs) | China | United States | |
| Year | 2025 | 2025 | |
| Specifications | |||
| Height (differs) | 95cm | 46cm | +49 cm (+107%) |
| Mass | 19.5kg | —unsourced | |
| Degrees of freedom (differs) | 22 | 18 | +4 (+22%) |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | 40min | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price (differs) | 4,999USD | 999USD | +4,000 USD (+400%) |
| Actuators (differs) | Dual-encoder actuators | 18 servo motors | |
| Compute | NVIDIA Jetson Orin NX 8GB (117 TOPS) base; up to 200 TOPS tier | —unsourced | |
| Sensors (differs) | RGB-D camera, 9-axis IMU, microphone array | cameras, IMU (per press) | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 30/ 100 | 90/ 100 | −60 |
| CAD (25) (differs) | not public | public | |
| Bill of materials (20) (differs) | not public | public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | not public | public | |
| Software (10) | public | public | |
| Trained policies (10) | not public | not public | |
| Verification level | L1 | L1 | |
| Sources (differs) | 2 | 3 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
03
Best-documented pairs
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