Walker S2
- Payload
- 15 kg
- Battery
- Swaps itself in 3 minutes
- Delivered
- 500+ in 2025
Source: UBTech Walker S2 page
Humanoid robots
Two-armed robots built to work in spaces designed for people.
Pilot
Runs at a few customer sites in limited scope. Results are not yet proven at scale.
What it does
A humanoid has two arms, hands and legs or a wheeled base. It can use the same racks, totes and stations as people, so you don’t rebuild the site. Today most humanoids move totes and parts in pilot projects.
The numbers
500+Walker S2 units delivered in 2025UBTech figure
15 kgpayload, Walker S2Spec
3 minself battery swap, Walker S2Spec
Best for
- Small pilots with clear metrics
- Gaps between stations that other robots can’t reach
- Sites that can’t change layout
Watch out for
- There is no public payback data yet.
- Ask for hours worked per day and interventions per shift.
- Safety standards for these robots are still in development.
“We have not achieved ROI on humanoids yet.”
What it costs
UBTech does not publish a Walker S2 price. It booked about RMB 800 million in Walker orders in 2025.
Why we rate it pilot
UBTech delivered more than 500 Walker S2 units in 2025, mostly to carmakers and Foxconn. Results on uptime and payback are not public yet.
Who makes it in China
Ask every vendor
- What tasks and cycle times at a live customer site?
- How many hours a day does it run, and how many interventions per shift?
- What does a pilot cost, and what exit terms apply?