UBTech Walker S2
Walker S2 is UBTech's 2025 industrial humanoid and the first to swap its own battery, allowing round-the-clock operation. It has 52 degrees of freedom and is the product behind UBTech's large 2025 order announcements.
The verdict
One of the very few humanoids with a genuine factory record rather than a demo reel. UBTech has put Walkers into car plants and published order numbers. You will not buy one; you will lease one, at around $5,000 a month, after a long conversation.
- Buy it if
- Manufacturers running a real automation pilot.
- Skip it if
- You are not an enterprise.
In its favour
- Actual factory deployments
- Hot-swappable battery
- Robot-as-a-service option
Against it
- $68,000 to $120,000, or a lease
- Enterprise procurement only
- Little public technical documentation
How the score is built
Capability is what the machine physically does. Value compares it with others at a similar price, not with the whole market. Buyability asks whether you can really order one. Ecosystem is the software and community around it. Proof is what it has done in the field, which is where most humanoids score badly and should.
Similar money, different machine.
- Status
- Commercial
- Category
- industrial
- First revealed
- 17 July 2025
- Form
- bipedal
- Height
- 176 cm
- Weight
- 76 kg
- Payload
- 15 kg
- Degrees of freedom
- 52
- Battery
- n/a
- Runtime
- n/a
- Walking speed
- n/a
- Actuation
- electric
- Units deployed (est.)
- not disclosed
- Teleoperation
- partial
Where it stands
Mass production announced for Q4 2025 with deliveries to BYD, Foxconn and other buyers; order book reported above CNY 1 billion (verify).
What stands out
- Autonomous 3-minute battery swap
- 52 DOF
Autonomy, observed
Autonomous battery swap (about 3 minutes) demonstrated in July 2025; factory material handling videos.
Hands, sensors, brain
- Hands: five-finger hands
- AI stack: Co-Agent and BrainNet frameworks
Price and volume
No public unit price; UBTech reports contract values only.
UBTech targeted about 500 Walker S deliveries in 2025 and several thousand in 2026 (verify).
Index position
In the Humanoid Index, which ranks on shipped reality rather than value for money, UBTech Walker S2 sits at #14 of 107 with 50 points: deployment 20/50, autonomy 18/30, availability 12/20. See that method.
Where UBTech Walker S2 works.
| Customer | Site | Sector | Task | Since | Status | Units | Autonomy |
|---|---|---|---|---|---|---|---|
| Multiple (BYD, Foxconn, Dongfeng Liuzhou, Zeekr and others named by UBTech) | Various factories in China, China | automotive | Material handling, sorting and inspection with autonomous battery swapping | Oct 2025 | active | n/d | mixed |
Milestones.
UBTech Walker S2 swaps its own battery
UBTech unveils Walker S2, an industrial humanoid that can autonomously exchange its own battery packs in about three minutes for continuous operation. UBTech reports Walker S2 orders worth hundreds of millions of yuan by the end of 2025.
Deposits, lead times and warranties: reading a humanoid order sheet
Of 42 buy records, 2 publish a deposit, 1 a warranty, 1 a shipping cost and none a lead time in weeks. The order sheet for a humanoid is mostly blank, and the blanks are where the money goes.
How long does a humanoid robot actually run
22 of 182 humanoids on record quote a runtime. The claims run from 1 to 8 hours with a median of 4, and of the 44 machines you can order, 4 say anything at all.
Who is paying for humanoids: 69 funding rounds
Our funding record holds 69 entries. Take out the government funds, the acquisitions and the IPOs and $6.33 billion of disclosed private money remains. 37 percent of it went to companies with no robot on record.
China builds, America demos: what 108 makers tell you
Chinese makers account for 65 of the 182 humanoids in our record and 31 of the 44 you can order. American makers hold the money, the research and most of the autonomy claims, and sell you almost nothing.
How much does a humanoid robot cost in 2026?
Thirty-five humanoids in our record carry a price, from $299 to $250,000 with a median of $15,000. What the money buys changes completely at each band, and so does how much you should trust the number.
Humanoid robot stocks: which of the 108 makers are actually listed
Twenty of the 108 makers in our record have a ticker. Four of them will sell you a humanoid. The rest build cars, chips, servers and washing machines, and the pure plays are all private.
Other robots by UBTech Robotics.
Tien Kung Xingzhe
Tien Kung Xingzhe combines the lower body of X-Humanoid's Tiangong with UBTech's upper body for the scientific research market. It launched in March 2025 at a list price of about CNY 299,000.
UBTech Alpha series
The Alpha series of 40 cm hobby humanoids built UBTech's early business and funded its later full-size Walker program. Alpha 1S robots performed on the 2016 Spring Festival Gala.
UBTech Walker (2018 and 2019)
Walker was UBTech's first full-size humanoid. The CES 2018 version had legs and a torso screen but no arms; the CES 2019 version added arms and hands with 36 degrees of freedom.
UBTech Walker C
Walker C is a UBTech humanoid aimed at commercial service settings such as reception and exhibitions rather than factories.
UBTech Walker S
Walker S was the first industrial version of the Walker line, unveiled on UBTech's Hong Kong listing day in December 2023. It was the first Chinese humanoid to enter a car factory training program (NIO, February 2024).
UBTech Walker S1
Walker S1 is the 2024 industrial humanoid that UBTech placed in several Chinese car and electronics plants. It is 172 cm tall, carries up to 15 kg and works with AMRs for material handling.
UBTech Walker X
Walker X was UBTech's 2021 service humanoid with 41 degrees of freedom and a 3 km/h walking speed. It served as a guide robot at the China pavilion of Expo 2020 Dubai.
Sources
- 01UBTech Walker S2 pageUBTech
Price sources
- 01Humanoid robot prices, 2026 guideRobotSourced · 2026-07-31
- 02Humanoid robots for sale: 2026 guideThere's A Robot For That · 2026-08-15
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