Apptronik Apollo vs UBTech Walker S2
Verdict
An American against a Chinese industrial humanoid. Apollo (72.6 kg, 25 kg payload) is in pilot operation with automotive partners; Walker S2 (176 cm, 73 kg, 52 degrees of freedom) is already in series production and made its name swapping its own battery without stopping. Facts vs hype: Apollo declares the higher payload and has strong partners, Walker S2 leads on manufacturing maturity and degrees of freedom.
Spec comparison
| Apollo | UBTech Walker S2 | |
|---|---|---|
| Name | Apollo | UBTech Walker S2 |
| Manufacturer | apptronik | ubtech |
| Country | US | CN |
| Status | Pilot | Mass production |
| Year | 2023 | 2025 |
| Height | 173 cm | 176 cm |
| Weight | 72.6 kg | 73 kg |
| DOF | — | 52 |
| Payload | 25 kg | 15 kg |
| Speed | — | 2 m/s |
| Price from | — | — |
When to choose which
Apollo
Pick Apollo if you need a high payload and the backing of American industrial partners.
UBTech Walker S2
Pick Walker S2 if you want a series-produced, dexterous humanoid that keeps running thanks to battery swapping.