Robots/UBTech
UBTech Walker S2
Humanoidworking for customers, US$145,000
20 sourced facts: 17 confirmed, 3 likely. Last checked 15 Oct 2026.
- Confirmed
- The robot's maker or the part's maker says so.
- Likely
- A good source points to it, but neither maker has said it outright.
- Rumoured
- One unverified report. A lead, not a fact.
Point at any row to see its source.Tap any row to see its source.
Availability
Whether you can get one, and what it costs.
Working for customersIndustrial versionConfirmed
UBTech says it began mass production and delivery of several hundred Walker S2 robots in November 2025, with car makers and factories among the customers. Its 2025 annual results say 1,079 full-size humanoids were sold that year.
- Applies to
- Industrial version
- Source
- UBTech Robotics (via PR Newswire), UBTECH Humanoid Robot Walker S2 Begins Mass Production and Delivery, with Orders Exceeding 800 Million Yuankyodonewsprwire.jp
- Also see
- UBTech Robotics, Annual Results Announcement for the year ended December 31, 2025 (HKEX filing)www1.hkexnews.hk
- Checked
- 15 Oct 2026
Working for customersIndustrial versionLikely
Xinhua reported in January 2026 that Airbus bought Walker S2 robots to test humanoids in aircraft manufacturing. The number of units was not disclosed.
Why not confirmed. News agency report of a UBTech statement; UBTech's own release was not found on its site.
- Applies to
- Industrial version
- Checked
- 15 Oct 2026
Not disclosedUBTech's product page publishes no price and asks buyers to get in touch.
UBTech's product page publishes no price and asks buyers to get in touch.
- We looked at
- UBTech Robotics, Walker S2 product pageubtrobot.com
- Checked
- 15 Oct 2026
US$145,000Industrial versionLikely
An Asian robot reseller lists the Walker S2 for US$145,000 with free delivery in Asia. This is a reseller price, not a UBTech list price.
Why not confirmed. Reseller listing; UBTech does not publish a price.
- Applies to
- Industrial version
- Source
- Robots Asia, UBTECH Humanoid Robotsrobotsasia.com
- Checked
- 15 Oct 2026
Brain layer 1 of 5
AI model
The software that decides what the robot does.
ThinkerConfirmed
UBTech's own AI model that lets its robots understand a scene, plan a job and find objects. UBTech says its own Thinker foundation model powers the Walker S2 so it can take over factory jobs such as handling, sorting and inspection.
- Made by
- In-house
- Applies to
- All versions
- Source
- UBTech Robotics, Annual Results Announcement for the year ended December 31, 2025 (HKEX filing)www1.hkexnews.hk
- Also see
- UBTech Robotics, Thinker on GitHubgithub.com
- Checked
- 15 Oct 2026
Co-AgentConfirmed
UBTech's AI agent for factory robots: it understands a goal, plans the steps and deals with problems. The Walker S2 carries UBTech's Co-Agent, an AI agent that plans tasks and handles problems, working with the BrainNet 2.0 system that coordinates groups of robots.
- Made by
- In-house
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 product pageubtrobot.com
- Also see
- UBTech Robotics (via PR Newswire), Walker S2 mass production releasekyodonewsprwire.jp
- Checked
- 15 Oct 2026
Brain layer 2 of 5
Chip
The computer inside the robot that runs it.
Jetson OrinEDU versionConfirmed
A small, powerful computer made for running AI inside machines. UBTech's Walker S2 manual lists the computing setup as an x86 computer plus an Nvidia Jetson Orin. The Jetson model (for example AGX or NX) is not named.
- Made by
- Nvidia
- Applies to
- EDU version
- Source
- UBTech Robotics, Walker S2 documentation, 5. Product compositiondocs.ubtrobot.com
- Also see
- UBTech Robotics, UBTECH Walker S2 SDK Secondary Development Document [External] V1.0a.storyblok.com
- Checked
- 15 Oct 2026
x86 computer, chip not namedEDU versionConfirmed
A standard PC-style computer board inside the robot. The chip maker and model are not published. Alongside the Jetson Orin, the Walker S2 has an x86 computer running Ubuntu 22.04; the chip maker and model are not named.
- Made by
- Not named
- Applies to
- EDU version
- Source
- UBTech Robotics, Walker S2 documentation, 5. Product compositiondocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 SDK document (lists Walker S2 x86 at Ubuntu 22.04.4)a.storyblok.com
- Checked
- 15 Oct 2026
Jetson ThorAnnounced August 2025Likely
Nvidia's newest onboard AI computer, aimed at humanoid robots. A Chinese tech news site reported in August 2025 that UBTech deployed Nvidia Jetson AGX Thor on the Walker S2 as an early adopter. UBTech's own current manuals still list Jetson Orin, so Thor may be a later or different build.
Why not confirmed. Press report of a UBTech social media post; Nvidia's own adopter list does not name UBTech, and UBTech's manuals say Jetson Orin.
- Made by
- Nvidia
- Applies to
- Announced August 2025
- Source
- DoNews, 英伟达发布新一代机器人芯片Jetson Thor,中国多家企业已采用donews.com
- Checked
- 15 Oct 2026
Brain layer 3 of 5
Senses
How the robot sees and hears the world.
Stereo camera pairsConfirmed
Cameras in pairs, like two eyes, so the robot can judge distance. The head has a pair of RGB cameras that work like human eyes, with a deep learning model turning the two images into a depth map.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 product pageubtrobot.com
- Also see
- UBTech Robotics, Walker S2 documentation, 7.5 Binocular cameradocs.ubtrobot.com
- Checked
- 15 Oct 2026
Stereo fisheye camerasConfirmed
Two very wide-angle cameras working as a pair. Two fisheye cameras in the head give a wide view; UBTech's spec diagram labels them and the SDK has left and right fisheye camera feeds.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 product page (parameter diagram)ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 documentation, 7.5 Binocular cameradocs.ubtrobot.com
- Checked
- 15 Oct 2026
Orbbec Gemini 2LEDU versionConfirmed
A depth camera that sees colour and measures how far away everything in view is. Two Orbbec Gemini 2L depth cameras sit on the back of the body and the front of the waist.
- Made by
- Orbbec
- Applies to
- EDU version
- Source
- UBTech Robotics, Walker S2 documentation, 7.4 RGBD cameradocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 product page (parameter diagram: RGBD Camera*1 front, RGBD Camera*1 back)ubtrobot.com
- Checked
- 15 Oct 2026
Force sensingConfirmed
Sensors that measure how hard the robot is pushing, pulling or gripping. A six-axis force sensor at each wrist measures the forces on the arms.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 documentation, 5. Product compositiondocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 product page (parameter diagram: Six-axis Force Sensor*2)ubtrobot.com
- Checked
- 15 Oct 2026
Motion sensor (IMU)Confirmed
A sensor, like the one in a phone, that feels tilt and movement so the robot can keep its balance. An inertial measurement unit tracks the robot's tilt and motion for balance.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 documentation, 5. Product compositiondocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 documentation, 7.3 IMU orindocs.ubtrobot.com
- Checked
- 15 Oct 2026
Microphone arrayConfirmed
Several microphones working together, so the robot can hear speech and tell where it comes from. A microphone array lets the robot hear spoken commands, with speech recognition triggered by the wake words Walker, Walker.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 documentation, 5. Product compositiondocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 documentation, 7.10 ASRdocs.ubtrobot.com
- Checked
- 15 Oct 2026
Brain layer 4 of 5
Training
How the robot was taught.
Isaac SimConfirmed
Nvidia's simulator for designing and testing robots, which also produces computer-made training images. UBTech publishes a Walker S2 model for Nvidia Isaac Sim and uses it as the official simulator for its 2026 humanoid challenge.
- Made by
- Nvidia
- Applies to
- All versions
- Source
- UBTech Robotics, WalkerS2-Model on GitHubgithub.com
- Also see
- UBTech Robotics, GlobalHumanoidRobotChallenge_2026_Baseline on GitHubgithub.com
- Checked
- 15 Oct 2026
Reinforcement learningEDU versionConfirmed
Learning by trial and error, keeping what works. UBTech says the Walker S2 walks using a motion controller trained with reinforcement learning.
- Made by
- Not named
- Applies to
- EDU version
- Source
- UBTech Robotics, Walker S2 documentation, 4. Product overviewdocs.ubtrobot.com
- Checked
- 15 Oct 2026
Teleoperated demonstrationsConfirmed
People drive the robot remotely, and the recordings become its lessons. The robot supports remote control by a human operator to collect data; UBTech's official challenge baseline collects Walker S2 training data by teleoperation in simulation.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Walker S2 documentation, 4. Product overviewdocs.ubtrobot.com
- Also see
- UBTech Robotics, GlobalHumanoidRobotChallenge_2026_Baseline on GitHubgithub.com
- Checked
- 15 Oct 2026
Simulator, not namedConfirmed
Simulation software where the robot practises in virtual worlds. The maker has not said which software. UBTech says the Walker S2 learned to sort parts using handling data gathered from both real robots and simulation, plus over 100 million data points from real production lines.
- Made by
- Not named
- Applies to
- All versions
- Source
- UBTech Robotics, Annual Results Announcement for the year ended December 31, 2025 (HKEX filing)www1.hkexnews.hk
- Checked
- 15 Oct 2026
Brain layer 5 of 5
Software
The system that ties it together and lets people program it.
ROS 2ROS 2 HumbleConfirmed
A widely used open system for robot software. Programmers use a ROS 2 (Humble) software kit inside containers on the robot, recommended on Ubuntu 22.04.
- Made by
- Open Robotics
- Applies to
- ROS 2 Humble
- Source
- UBTech Robotics, Walker S2 documentation, 6. SDK overviewdocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 SDK Secondary Development Document [External] V1.0a.storyblok.com
- Checked
- 15 Oct 2026
ROSA 2.0ROSA 2.0Confirmed
UBTech's own robot software framework, which ties a robot's functions together for app developers. The robot runs Ubuntu with UBTech's own ROSA 2.0 robot application framework, which ties together its functions and controls.
- Made by
- In-house
- Applies to
- ROSA 2.0
- Source
- UBTech Robotics, Walker S2 documentation, 6. SDK overviewdocs.ubtrobot.com
- Also see
- UBTech Robotics, Walker S2 documentation, 5. Product composition (Operating system: Ubuntu + ROSA 2.0)docs.ubtrobot.com
- Checked
- 15 Oct 2026
Changes
None since this page was published on 15 Oct 2026. When a fact is corrected, the old version stays listed here.
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