UBTech Walker S1 vs Walker S2
Verdict
A generational contest inside UBTech, both in series production for industry and logistics. Walker S1 (2024, 172 cm, 76 kg, 41 degrees of freedom) is the established factory worker; Walker S2 (2025, 176 cm, 73 kg, 52 degrees of freedom) adds dexterity, more speed (2 m/s) and hot-swappable batteries. Facts vs hype: the S2 is a clear technical step forward in both dexterity and uptime, while keeping the same 15 kg payload.
Spec comparison
| UBTech Walker S1 | UBTech Walker S2 | |
|---|---|---|
| Name | UBTech Walker S1 | UBTech Walker S2 |
| Manufacturer | ubtech | ubtech |
| Country | CN | CN |
| Status | Mass production | Mass production |
| Year | 2024 | 2025 |
| Height | 172 cm | 176 cm |
| Weight | 76 kg | 73 kg |
| DOF | 41 | 52 |
| Payload | 15 kg | 15 kg |
| Speed | 0.83 m/s | 2 m/s |
| Price from | — | — |
When to choose which
UBTech Walker S1
Pick Walker S1 if you want the longer-proven generation already deployed in factories.
UBTech Walker S2
Pick Walker S2 if you need the more dexterous and faster model that can run continuously.