cleaning
Material handling and sorting in live factories
Commercially deployedVerified July 2026
- Control mode
- Autonomous
- Human intervention
- Supervised fleets; exception handling
Research record R-052Limited delivery
Walker S2
By UBTech Robotics · China · announced July 2025
The first humanoid that swaps its own battery, in mass delivery with a nine-figure order backlog in China.
Broader research scope
This is a research record, not a curated recommendation.
The main field guide selects 14 companion robots for deeper review. This entry belongs to a separate 53-record index that also covers industrial, research, and developer systems.
Research summary
What the record says.
Walker S2 is UBTech's industrial humanoid and China's volume leader in factory deployments. Its signature feature is a world first: fully autonomous battery hot-swapping, with the robot exchanging its own dual batteries in about three minutes for near-continuous operation. Mass production and paid deliveries began in mid-November 2025 with launch orders exceeding 800 million yuan.
UBTech, listed in Hong Kong, delivered roughly 1,000 humanoids across its lines in 2025 (about 1.3 billion yuan in product sales) to customers including automakers and electronics manufacturers, with a reported backlog around 1.4 billion yuan by June 2026 and a 2026 target of 10,000 humanoid deliveries. The Walker line has worked in BYD, Foxconn and other plants since earlier generations.
Per-unit pricing has never been published; sales are enterprise quotes. A consumer-oriented sibling, Walker C1, began appearing in mid-2026 as UBTech tests the companion market.
Delivery evidence
Announcement is not arrival.
Commercially deployed
Mass production and delivery since November 2025; about 1,000 UBTech humanoids delivered in 2025; publicly traded company reporting
Capability ledger
What has actually been shown?
2 material claims are separated by evidence setting and human involvement. The strongest recorded signal is Commercially deployed; it does not automatically transfer to every row.
security
Patrol and inspection deployments (including border-area contract)
Real-world demoVerified July 2026
- Control mode
- Mixed / assisted
- Human intervention
- Operator oversight
Hardware record.
- Height
- 176 cm
- Weight
- Unknown / not disclosed
- Locomotion
- Bipedal walking
- Payload
- Industrial handling loads; figures configuration-dependent
- Runtime
- Near-continuous via 3-minute autonomous battery hot-swap
- Charging
- Dual swappable batteries plus dock
- Top speed
- Factory walking speeds
- Degrees of freedom
- 52 (company figure)
- Hands
- Dexterous hands for industrial tasks
- Face / expression
- Sensor head with light signaling
- Sensors
- Multi-camera vision, lidar, force sensing
Software record.
- AI platform
- UBTech BrainNet swarm intelligence framework and in-house models
- Voice
- Not a focus
- Languages
- Chinese, English interfaces
- Visual recognition
- Industrial part and fixture recognition
- Memory
- Fleet task orchestration
- Processing
- Onboard with factory network coordination
- Autonomous abilities
- Sorting, quality inspection, material transport in live plants
- Teleoperation
- Supported for training and exceptions
- Software updates
- Fleet updates
- Developer access
- Enterprise integration
Who can see, hear, or take control?
- Recording storage
- Enterprise-controlled
- Remote operation possible
- Yes
- Teleoperation disclosure
- Workplace protocols
- Camera / microphone controls
- Site controlled
- Data deletion
- Contract governed
- Account required
- Enterprise
- Emergency stop
- Industrial e-stop
- Children and pets
- Not applicable (industrial)
- Security updates
- Enterprise support
Open questions
Disputed or unverified.
- How many of the 10,000 targeted 2026 units have shipped by mid-2026 is unpublished
Lifecycle record
Status history.
- Public demonstration
Walker S2 unveiled with autonomous battery swapping
- Limited delivery
Mass production and delivery begin; 800M+ yuan in orders
- Limited delivery
Backlog about 1.4B yuan; 10,000-unit 2026 target
Source register
3 linked sources.
These sources support the research record as a whole. Unlike the curated dossiers, this imported record does not yet map every claim to a stable source ID.