Walker S2 vs XPeng IRON (Gen 2)
Compare Walker S2 (UBTECH Robotics) and XPeng IRON (Gen 2) (Xpeng) side by side: degrees of freedom, weight, payload, battery life, actuators, and status.
| Spec | Walker S2 | XPeng IRON (Gen 2) |
|---|---|---|
| Manufacturer | UBTECH Robotics | Xpeng |
| Category | Humanoid | Humanoid |
| Country | China | China |
| Degrees of freedom | 52 | 76 |
| Weight (kg) | 70 | Not disclosed |
| Battery life (h) | 2.5 | Not disclosed |
| Payload | 15 kg | |
| Max speed | 2.0 m/s | |
| Actuators | ||
| Primary sensor | ||
| Function | Assembly & manufacturing | Assembly & manufacturing |
| Released | 2025 | 2025 |
| Status | Active | Testing |
Verdict
Walker S2 leads on 0 of the 1 weighted dimensions both makers disclose.
XPeng IRON (Gen 2) leads on degrees of freedom (76 vs 52).
Left out because at least one manufacturer does not publish a figure: price, payload, max speed and battery life.
Walker S2
Walker S2, from UBTECH Robotics. No maker specification sheet is on file, so no dimensions, price or performance figures are listed.
XPeng IRON (Gen 2)
XPeng's next-generation humanoid, with a flexible lattice body structure and three Turing AI chips. The first units came off XPeng's new production line on Sep 8, 2026. XPeng has not published weight, battery life, speed, payload or a price.