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 humanoidsFourier N1 is 45 cm shorter (130 vs 175 cm) and 37 kg lighter (38 vs 75 kg) than Kepler Forerunner K2 "Bumblebee". Fourier N1 has 29 fewer degrees of freedom (23 vs 52) than Kepler Forerunner K2 "Bumblebee". Openness score: Fourier N1 85, Kepler Forerunner K2 "Bumblebee" 0 (of 100); only Fourier N1 publishes CAD, BOM, SIM, SW and POL. Availability for both: buy.
| Field | Fourier (Fourier Intelligence)Fourier N1 | Kepler Robotics (Shanghai Kepler Exploration Robot Co.)Kepler Forerunner K2 "Bumblebee" | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Fourier (Fourier Intelligence) | Kepler Robotics (Shanghai Kepler Exploration Robot Co.) | |
| Class | Humanoid | Humanoid | |
| Status | Active | Active | |
| Availability | Buy | Buy | |
| Country | China | China | |
| Year (differs) | 2025 | 2024 | |
| Specifications | |||
| Height (differs) | 130cm | 175cm | −45 cm (-26%) |
| Mass (differs) | 38kg | 75kg | −37 kg (-49%) |
| Degrees of freedom (differs) | 23 | 52 | −29 (-56%) |
| Payload | —unsourced | 30kg | |
| Top speed | 3.5m/s | —unsourced | |
| Runtime (differs) | 120min | 480min | −360 min (-75%) |
| Battery capacity | —unsourced | 2,330Wh | |
| Price | —unsourced | 30,000USD | |
| Actuators (differs) | Fourier FSA actuators; URDF effort limits 95 N·m x4, 54 N·m x7, 30 N·m x12 | Hybrid roller-screw linear + rotary actuators | |
| Compute | —unsourced | 100 TOPS onboard | |
| Sensors | —unsourced | 80+ integrated sensors; tactile dexterous hands | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 85/ 100 | 0/ 100 | +85 |
| CAD (25) (differs) | public | not public | |
| Bill of materials (20) (differs) | public | not public | |
| Sim model (URDF/MJCF) (20) (differs) | public | not public | |
| Firmware (15) | not public | not public | |
| Software (10) (differs) | public | not public | |
| Trained policies (10) (differs) | public | not public | |
| Verification level (differs) | L2 | L0 | |
| Sources (differs) | 8 | 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