Head to head
Side-by-side comparison
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 Fourier |  1X |  Kepler Robotics |  EngineAI | |
|---|---|---|---|---|
| Score | 80/100 | 91/100 | 88/100 | 85/100 |
| Price | — | €17,200 | €29,760 | €21,600 |
| Category | Humanoid Robots | Humanoid Robots | Humanoid Robots | Humanoid Robots |
| Availability | Shipping | Pre-order | Shipping | Shipping |
| Degrees of freedom | 53 | 75 | 52 | 43 |
| Payload | 3 kg | 25 kg | 30 kg | 5 kg |
| Runtime | 120 min | 240 min | 480 min | 180 min |
| Height | 175 cm | 168 cm | 175 cm | 173 cm |
| Weight | 63 kg | 30 kg | 75 kg | 75 kg |
| Hand DoF (per hand) | 12 | 22 | 11 | 7 |
| Locomotion | Bipedal | Bipedal | Bipedal | Bipedal |
| Main use | Research | Home | Industrial | Industrial |
| Made in | China | United States | China | China |
| Year | 2024 | 2025 | 2025 | 2025 |
| SDK | Open SDK | — | Open SDK | Open SDK |
| Swappable battery | Yes | — | — | Yes |
| Top speed | — | 5 km/h | — | 7.2 km/h |
| Announced price | — | US$20,000 | ¥248,000 | ¥180,000 (reported) |
| Best price | — | €17,200 → | €29,760 → | €21,600 → |
Score breakdown
How we score →| Fourier GR-2 | 1X NEO | Kepler K2 | EngineAI T800 | |
|---|---|---|---|---|
| Mobility (DoF) | 100 | 100 | 100 | 96 |
| Dexterous hands | 86 | 100 | 84 | 73 |
| Payload | 63 | 93 | 96 | 70 |
| Battery life | 78 | 92 | 100 | 86 |
| Availability | 100 | 84 | 100 | 100 |
The best score in each row is highlighted. Scores out of 100.
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