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 humanoidsK-Bot is 97 kg lighter (34 vs 131 kg) than Rainbow Robotics RB-Y1. K-Bot has 7 kg more rated payload (10 vs 3 kg) than Rainbow Robotics RB-Y1. Both list the same height (140 cm) and degrees of freedom (20). Openness score: K-Bot 100, Rainbow Robotics RB-Y1 30 (of 100); only K-Bot publishes CAD, BOM, FW and POL. Availability: K-Bot diy build, Rainbow Robotics RB-Y1 buy.
| Field | K-Scale LabsK-Scale K-Bot | Rainbow RoboticsRainbow Robotics RB-Y1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | K-Scale Labs | Rainbow Robotics | |
| Class (differs) | Humanoid | Wheeled humanoid | |
| Status (differs) | Discontinued | Active | |
| Availability (differs) | DIY build | Buy | |
| Country (differs) | United States | South Korea | |
| Year (differs) | 2025 | 2024 | |
| Specifications | |||
| Height | 140cm | 140cm | = |
| Mass (differs) | 34kg | 131kg | −97 kg (-74%) |
| Degrees of freedom | 20 | 20 | = |
| Payload (differs) | 10kg | 3kg | +7 kg (+233%) |
| Top speed | —unsourced | 1.5m/s | |
| Runtime | 240min | —unsourced | |
| Battery capacity | —unsourced | 1,250Wh | |
| Price | 8,999USD | —unsourced | |
| Actuators (differs) | RobStride RS00 x2, RS02 x6, RS03 x8, RS04 x4 | Rainbow in-house joint modules | |
| Compute (differs) | Raspberry Pi 5 | Dual-PC (real-time robot PC + user PC with ROS 2) | |
| Sensors (differs) | cameras, microphones, head sensor array | Built-in wrist force/torque sensors (v1.2); optional camera | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 100/ 100 | 30/ 100 | +70 |
| 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) | public | not public | |
| Verification level (differs) | L1 | L2 | |
| Sources (differs) | 7 | 2 | |
| Last checked (differs) | 2026-09-25 | 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