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HumanoidUBTech Robotics2023CN

UBTech Walker S (S1 / S2)

Industrial humanoid line for factory work; the Walker S2 (July 2025) autonomously swaps its own battery in about 3 minutes.

activeBuyL0 Indexednot buildable

Difficulty index

9.0/13
9.0
Index breakdown
Classhumanoid+5
Costunknown · midpoint+1.5
DOFunknown · midpoint+1.5
Partsunknown · midpoint+1
How the index works

Top of the ladder. This robot lives on the humanoid domains.

Specimen photographs

2 items
  • Meet UBTECH New-Gen of Industrial Humanoid Robot——Walker S2UBTECH Robotics · official video, embedded · source
  • Introducing UBTECH Humanoid Robot Walker S1: meet the generalization needs in industrial scenariosUBTECH Robotics · official video, embedded · source

Spec card

4/13 known
Payload
15 kg
Actuators
Servo joints with force feedback
Compute
BrainNet 2.0 + Co-Agent (UBTech software)
Sensors
RGB binocular stereo vision (S2)

Not in the registry: degrees of freedom, height, mass, speed, runtime, battery, price, bom total, part count. Left blank rather than guessed.

What you learn building it

  • +Whole-body control
  • +Dozens of actuators on one bus
  • +Balance and fall handling
  • +Safe bring-up of a full-size machine

Openness

0/100
  • not publicCAD
  • not publicBOM
  • not publicFirmware
  • not publicSim model
  • not publicSoftware
  • not publicPolicies

Score 0/100 computed from what is public: CAD 25, BOM 20, sim 20, firmware 15, software 10, policies 10.

Repos & models

Site

Build it

Closed hardware. Buy link only.

humanoidrobot.build/ubtech/walker-s · Closed hardware. Buy link only.

Simulate

humanoidrobots.training/ubtech/walker-s

No public URDF or MJCF.

Next rung

None. This is the top. Find people building it on humanoidrobots.team.

This is the top of the ladder.

NoteThe original Walker S (2023, about 1.7 m, 41 servo joints) was deployed at a Nio factory in Feb 2024. Walker S2 was unveiled July 17, 2025 and is the mass-production model, with deliveries reported from Nov 2025. Third-party sites claim 176 cm / 70+ kg / 52 DOF for S2, but the maker page does not confirm those figures. UBTech is HKEX-listed (9880).

Sources

  1. [1]UBTech Walker S2 pagechecked 2026-09-24
  2. [2]CnEVPost Walker S2 battery swapchecked 2026-09-24
  3. [3]UBTech Walker S pagechecked 2026-09-24