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 humanoidsEngineAI PM01 is 92 cm taller (138 vs 46 cm) than Z-Bot (Zeroth Bot). EngineAI PM01 has 6 more degrees of freedom (24 vs 18) than Z-Bot (Zeroth Bot). Listed prices: EngineAI PM01 $12,000, Z-Bot (Zeroth Bot) $999. Openness score: EngineAI PM01 30, Z-Bot (Zeroth Bot) 90 (of 100); only Z-Bot (Zeroth Bot) publishes CAD, BOM and FW. Availability: EngineAI PM01 buy, Z-Bot (Zeroth Bot) diy build.
| Field | EngineAI (Zhongqing Robotics)EngineAI PM01 | K-Scale LabsK-Scale Z-Bot (Zeroth Bot) | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | EngineAI (Zhongqing Robotics) | K-Scale Labs | |
| Class | Humanoid | Humanoid | |
| Status (differs) | Active | Orphaned | |
| Availability (differs) | Buy | DIY build | |
| Country (differs) | China | United States | |
| Year (differs) | 2024 | 2025 | |
| Specifications | |||
| Height (differs) | 138cm | 46cm | +92 cm (+200%) |
| Mass | 40kg | —unsourced | |
| Degrees of freedom (differs) | 24 | 18 | +6 (+33%) |
| Payload | —unsourced | —unsourced | |
| Top speed | 2m/s | —unsourced | |
| Runtime | 120min | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price (differs) | 12,000USD | 999USD | +11,001 USD (+1101%) |
| Actuators (differs) | EngineAI electric actuators (up to 300 N·m) | 18 servo motors | |
| Compute | Intel N97 + NVIDIA Jetson Orin | —unsourced | |
| Sensors (differs) | Intel RealSense depth camera | 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 | 3 | 3 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
03
Best-documented pairs
most sourced fields on both sidesHyperspawn DropbearvsPollen Reachy 211fHyperspawn DropbearvsKepler Forerunner K2 "Bumblebee"11fHyperspawn DropbearvsPUDU D911fKepler Forerunner K2 "Bumblebee"vsPollen Reachy 211fPollen Reachy 2vsPUDU D911fKepler Forerunner K2 "Bumblebee"vsPUDU D911fHyperspawn DropbearvsRainbow Robotics RB-Y110fHyperspawn DropbearvsUnitree G110fRainbow Robotics RB-Y1vsUnitree G110fEngineAI PM01vsHyperspawn Dropbear10fEngineAI PM01vsRainbow Robotics RB-Y110fEngineAI PM01vsUnitree G110fHyperspawn DropbearvsK-Scale K-Bot10fHyperspawn DropbearvsUnitree H1-210fK-Scale K-BotvsRainbow Robotics RB-Y110fK-Scale K-BotvsUnitree G110fPollen Reachy 2vsRainbow Robotics RB-Y110fPollen Reachy 2vsUnitree G110fRainbow Robotics RB-Y1vsUnitree H1-210fUnitree G1vsUnitree H1-210fEngineAI PM01vsK-Scale K-Bot10fEngineAI PM01vsPollen Reachy 210fEngineAI PM01vsUnitree H1-210fFigure 02vsHyperspawn Dropbear10f