UBTECH's official Walker S2 page offers a contact form rather than a public list price. The accurate status on August 7, 2026 is quote-only pricing. A buyer cannot derive a unit price from a large project order; the quote needs to separate robots, batteries, swap stations, software, integration and service.
UBTECH says the dual-battery Walker S2 can autonomously swap a battery within three minutes and support 24/7 continuous operation. Those are manufacturer statements about the product design, not independent evidence of a robot running every hour without human intervention at any factory. Read them with the broader humanoid battery-runtime limits.
Walker S2 is priced as a project, not a public checkout item
The product page has no cart, universal MSRP or country price; it routes prospects to sales. UBTECH's separate disclosure of an order worth more than RMB 50 million centered on Walker S2 can include multiple robots, interfaces and integration work. Dividing it by an assumed robot count would create a price the company did not publish.
Ask for robot version and quantity, battery count, swap and charging stations, Co-Agent or BrainNet licensing, cell integration, safety work, training, spares and field support. Match the lines to the humanoid total-deployment-cost guide before comparing vendors.
| Quote line | Public status | Required detail |
|---|---|---|
| Walker S2 hardware | No public list price | Quantity, revision and lead time |
| Batteries | Dual-battery design disclosed | Included count, life and replacement cost |
| Swap station | Autonomous swapping disclosed | Station count, charge throughput and footprint |
| Integration and service | Contact sales | Interfaces, SLA, spares and field labor |
The three-minute swap is a robot-and-station system function
UBTECH attributes the under-three-minute swap to dual-battery dynamic balancing, hot swapping and coordinated use of both arms. The robot is also described as choosing a swap or charge mode from battery state and task priority. Three minutes is a vendor-published feature value.
A site test must add travel to the station, queuing, alignment failures, depleted-pack recharge time, available spares and station downtime. If several robots share a station, charge and queue throughput can constrain availability more than the nominal swap operation.
24/7 capable describes energy management, not proven zero-stop history
The page's '24/7 Continuous Operation' message indicates that autonomous replenishment can reduce long manual charging stops. It does not warrant that motors, reducers, hands, sensors, compute, software, material supply and preventive maintenance never interrupt the robot.
Request net runtime per shift, swap success rate, return-to-task time, thermal derating, mean time between failures and human recovery time. Keep 'designed for 24/7 operation' and 'verified unattended 24-hour run' as separate rows in the acceptance report.
Production and delivery statements must retain their company-reported scope
UBTECH's 2025 annual report describes Walker S2 as reaching thousand-unit-level small-scale mass production and delivery. It is an official listed-company report, but not a customer-by-customer externally audited installation list. 'Thousand-unit-level' should not be silently converted into exactly 1,000 commissioned robots.
A 2026 UBTECH-Hitachi announcement says Walker S2 was introduced into selected manufacturing environments for operational testing and application validation. The same release discusses more than 1,000 full-size industrial humanoids delivered and revenue recognized across the broader program; that figure should not be relabeled as a Walker S2-only installed base.
| Official evidence | Supported status | Unsupported reading |
|---|---|---|
| 2025 annual report | Thousand-unit-level Walker S2 production and delivery reported | Exactly 1,000 commissioned customer units |
| Product page | Mass-production product and functions | Immediate availability in every country |
| Hitachi partnership | Selected-site testing and validation | All Hitachi plants in permanent operation |
| RMB 50M-plus order | Commercial order centered on Walker S2 | Published unit price |
The 15kg specification still needs a task-specific load map
UBTECH states that Walker S2 handles a 15kg payload within a 0-to-1.8-meter workspace, with a waist rotation of plus or minus 162 degrees and a 125-degree pitch. This shows an attempt to reach from low to high positions; it does not say every reach and posture carries 15kg simultaneously.
Test the real object's center of mass, grip, surface, travel distance and repetition. Record every attempt, regrasp and intervention rather than one selected lift. Connect the robot cell to the warehouse picking workflow so a fast lift does not hide a downstream bottleneck.
Ask for an energy-operations log before discussing purchase price
The most useful evidence is a dated log of tasks, state of charge, swap requests, station arrivals, successful changes, recharge completion and return to work. Add robots per station, spare packs, maintenance bay capacity and the manual fallback. That data turns a 24/7 headline into a site-specific availability model.
The contract should define when the three-minute clock starts and ends, failed attempts, battery warranty and remaining-capacity threshold, software and parts support, target uptime and excluded downtime. Public evidence supports an autonomous-swap design and company-reported production progress; it does not establish a public price or universal unattended 24-hour operating record.
Frequently asked questions
What is the official UBTECH Walker S2 price?
UBTECH does not list a universal price on the current product page. A project quote must cover the robot, batteries, swap stations, integration, software and service.
Can Walker S2 really swap a battery in three minutes?
UBTECH claims an autonomous swap within three minutes using the dual-battery robot and its station. Repeated site success, queueing and recharge time still need validation.
Does 24/7 capable guarantee unattended nonstop operation?
No. It is UBTECH's energy-management capability claim. Maintenance, faults, material flow, station availability and human recovery must be included in a continuous-operation test.
Official sources checked
- UBTECH Walker S2 official product page
- UBTECH Annual Report 2025
- UBTECH and Hitachi strategic partnership
- UBTECH commercial-order update
Last checked: August 7, 2026