UBTech Walker S2
UBTech Robotics
An industrial humanoid with the world's first autonomous hot-swappable battery system, deployed on NIO and BYD assembly lines.
- Origin
- Shenzhen, China
- Announced
- 2025 (mass production from ~November 2025)
- Configurations
- varies
- Price (estimated)
- est.$160,000
UBTech Walker S2, full body, standing
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Commercial record
What it actually costs.
Pricing is presented in full, not flattened to one number. Figures vary by configuration and by where the unit is purchased.
Estimated range (no official price)
est.$160,000
UBTech publishes no official price for the Walker S2; units are sold to enterprises. A figure of approximately $160,000 is widely cited as an industry estimate, not a list price. The Walker S and S2 line is reported to have taken more than 800 million yuan (approximately $112 million) in orders.[2]
Configuration tier
From
Industry estimate (not an official price)
Widely-cited estimate; UBTech publishes no official figure.
$160,000[2]
Specifications
The full technical record.
Specifications vary by configuration. Each value is attributed to its source; figures marked for EDU configurations differ from the base unit.
Neutral analysis
The record, in plain terms.
Overview
The Walker S2 is UBTech Robotics' industrial humanoid, in mass production since around November 2025. Its defining feature is the world's first autonomous hot-swappable battery system for a humanoid: the robot swaps its own dual 48V packs in roughly three minutes, enabling continuous around-the-clock operation. At approximately 176 cm and 73 kg with 52 degrees of freedom, up from the prior Walker S's 41, it carries 4th-generation 11-DoF dexterous hands, force and tactile sensing, and UBTech's Co-Agent and BrainNet 2.0 dual-loop AI with swarm coordination. The S2 is deployed on NIO and BYD automotive assembly lines, the Walker line is reported to have taken more than 800 million yuan in orders, and Airbus trials have been reported.
Strengths
- World's first autonomous hot-swappable battery for a humanoid, enabling 24/7 operation.
- Deployed on NIO and BYD automotive assembly lines.
- 52 degrees of freedom with 4th-generation 11-DoF dexterous hands.
- Waist servo enabling +/-162 degree rotation.
- Swarm coordination through the Co-Agent and BrainNet 2.0 dual-loop system.
- Reported order book above 800 million yuan for the Walker S line.
Considerations
- An industrial platform, not a consumer product.[1]
- No official price exists; the approximately $160,000 figure is an industry estimate.[2]
- One outlier source frames the platform as a lighter household variant, which conflicts with the strongly corroborated industrial positioning; this record treats it as industrial.[3]
The flywheel
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Verifiable
Sources.
We are sourced, and verifiable. Every cited figure above ties back to a numbered reference here.
- [1]UBTech Robotics, Official Walker S2 Page
https://www.ubtrobot.com/en/humanoid/products/walker-s2
Manufacturer specifications.
- [2]Humanoid Guide, Walker S2
https://humanoid.guide/product/walker-s2/
Independent aggregator; source for the price estimate, compute details, and prior-generation figures.
- [3]RoboZaps, Walker S Review
https://blog.robozaps.com/b/ubtech-walker-s-review
Independent review; the outlier household-variant framing appears here.
Cite this record
The Rivet Index. "UBTech Walker S2." RID-000022. https://rivetindex.com/r/RID-000022