Kepler K2 vs UBTech Walker S2
Verdict
Two Chinese industrial humanoids with the same degree-of-freedom count (52). The Kepler K2 'Bumblebee' (175 cm, 75 kg) is a prototype with a high declared 30 kg payload for industry; Walker S2 (176 cm, 73 kg) is already in series production with hot-swappable batteries. Facts vs hype: the K2 tempts with the higher declared payload, Walker S2 leads on manufacturing maturity and uptime.
Spec comparison
| Kepler K2 "Bumblebee" | UBTech Walker S2 | |
|---|---|---|
| Name | Kepler K2 "Bumblebee" | UBTech Walker S2 |
| Manufacturer | kepler | ubtech |
| Country | CN | CN |
| Status | Prototype | Mass production |
| Year | 2025 | 2025 |
| Height | 175 cm | 176 cm |
| Weight | 75 kg | 73 kg |
| DOF | 52 | 52 |
| Payload | 30 kg | 15 kg |
| Speed | — | 2 m/s |
| Price from | 30,000 USD | — |
When to choose which
Kepler K2 "Bumblebee"
Pick the Kepler K2 if you need the highest declared payload for industrial handling.
UBTech Walker S2
Pick Walker S2 if you prefer a series-produced humanoid that can run continuously.