Walker S2
Industrial humanoid and the first robot able to autonomously hot-swap its own batteries, in mass production and delivery since late 2025.
Overview
Walker S2 is UBTECH’s full-size industrial humanoid, notable as the first humanoid able to autonomously hot-swap its own batteries via a dual-battery system, enabling near-continuous 24/7 operation. UBTECH began mass production and delivery in November 2025, reporting over 800 million yuan in Walker-series orders. It is sold to enterprises for factory, logistics and automotive work; no fixed per-unit list price is published.
Use cases
Capability evidence
- Autonomous battery hot-swapWorld-first video showed Walker S2 walking to a station, removing its depleted chest battery and inserting a charged one by itself in about 3 minutes for 24/7 operation. CnEVPost ↗ · 2025-07
- Live border customs workDeployed at the Fangchenggang China-Vietnam border crossing for queue guidance, multilingual instructions, patrols and cargo-lane container scanning under a $37M contract. Interesting Engineering ↗ · 2026-07
- Automaker line testingTested on production lines by Nio, Zeekr and BYD, including multi-robot collaborative tasks at Zeekr's 5G smart factory. CnEVPost ↗ · 2025-07
Walker S2 among its peers
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Related robots
UBTECH Robotics Shipping Walker C
2025 commercial-service biped (Harbin Asian Winter Games torchbearer); still listed, but Walker C1 now leads the segment.
- Height
- ~162 cm
UBTECH Robotics Shipping Walker C1
2026 full-size commercial-service biped for reception, guiding, patrol and education; quote via official sales-inquiry flow.
- Height
- 165 cm
- Payload
- ~5 kg manipulation
- DoF
- ~26 body + 10 hand
UBTECH Robotics Shipping Walker S
First-gen industrial Walker piloted on NIO's car line in 2024; still listed officially but superseded by S1/S2.
- Height
- ~170 cm
- DoF
- 41