Walker S2

Summary

Walker S2 is UBTech's current flagship humanoid, unveiled in July 2025 with mass production and delivery beginning in November 2025. It is among the first humanoids genuinely working on automotive production lines, and its autonomous hot-swap battery — swappable in under three minutes — enables continuous 24/7 operation.

Walker S2 carries 52 degrees of freedom, dual 48V lithium-ion packs and Gen-4 dexterous hands with 11 DOF each. UBTech pairs an Intel Core i7 with an NVIDIA Jetson AGX Orin in a split-brain compute layout, running its proprietary Co-Agent task planner and BrainNet 2.0 swarm intelligence. The company reported a 2025 order backlog exceeding 800 million yuan (roughly US$112 million) across deep automaker partnerships — including BYD, NIO, Geely, FAW-Volkswagen, BAIC and Foxconn — and targets 5,000 deliveries in 2026, scaling to 10,000 per year by 2027.

Specifications

Sources

• UBTech Robotics — Walker S2 ↗
• PR Newswire — UBTech Walker order backlog ↗

Last reviewed: 2026-06-13

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