Engineered Ameca vs K-Scale Z-Bot (Zeroth Bot)
Generated from the registry · revision 2026-09-26 · openness out of 100
Ameca is 141 cm taller (187 vs 46 cm) than Z-Bot (Zeroth Bot). Ameca has 43 more degrees of freedom (61 vs 18) than Z-Bot (Zeroth Bot). Openness score: Ameca 0, Z-Bot (Zeroth Bot) 90 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM, SIM, FW and SW. Availability: Ameca buy, Z-Bot (Zeroth Bot) diy build.
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Side by side
■ rows differ| Field | Engineered ArtsEngineered Ameca | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Engineered Arts | K-Scale Labs | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Active | Orphaned | |
| Availability (differs) | Buy | DIY build | |
| Country (differs) | United Kingdom | United States | |
| Year (differs) | 2021 | 2025 | |
| Specifications | |||
| Height (differs) | 187cm | 46cm | +141 cm (+307%) |
| Mass | 62kg | —unsourced | |
| Degrees of freedom (differs) | 61 | 18 | +43 (+239%) |
| Payload | —unsourced | —unsourced | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price | —unsourced | 999USD | |
| Actuators (differs) | Electric; 27 DOF head/face, 34 DOF upper body | 18 servo motors | |
| Compute | Embedded robot PC; Tritium robotOS (Linux/Yocto) | —unsourced | |
| Sensors (differs) | 2x 8MP eye cameras, binaural mics, 4-ch chest mic, LiDAR safety sensors | cameras, IMU (per press) | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 0/ 100 | 90/ 100 | −90 |
| CAD (25) (differs) | not public | public | |
| Bill of materials (20) (differs) | not public | public | |
| Sim model (URDF/MJCF) (20) (differs) | not public | public | |
| Firmware (15) (differs) | not public | public | |
| Software (10) (differs) | not public | public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L0 | L1 | |
| Sources (differs) | 2 | 3 | |
| 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: Ameca, Z-Bot (Zeroth Bot).
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