{"id":"ubtech-walker-s2","manufacturer":"UBTECH","model":"Walker S2","country":"CN","description":"Walker S2 is a full-size industrial humanoid from Shenzhen-based UBTECH that swaps its own battery and can work around the clock. It has been in mass production since November 2025 and ships to car plants, logistics sites and data collection centers.","catalog_status":"preorder","specifications":{"height_cm":176,"weight_kg":70,"payload_kg":null,"dof":42,"speed_ms":null,"battery_h":null},"capabilities":["sort","assemble","obstacle","recover","ascend"],"source":{"url":"https://www.ubtrobot.com","verified_at":null,"verified_fields":[],"review_status":"requires_current_source_check"},"evidence":{"manufacturer_review":null,"mera_field_test":{"status":"not_published","report_url":null,"measured_at":null},"verification_note":"A manufacturer documentation check does not verify field performance, inventory or MERA compatibility."},"knowledge":{"summary":"Walker S2 is a full-size industrial humanoid from Shenzhen-based UBTECH that swaps its own battery and can work around the clock. It has been in mass production since November 2025 and ships to car plants, logistics sites and data collection centers.","sections":[{"h":"History and launch","p":["Walker S2 is the latest model in UBTECH's industrial Walker S line, which the company has been trialling on Chinese automotive assembly lines for several years. It has been available to industrial buyers since July 2025.","On November 17, 2025, UBTECH announced mass production and delivery of a first batch of several hundred units, targeting 500 deliveries in 2025. In January 2026 it said Airbus had purchased Walker S2 to explore humanoids in aircraft manufacturing."]},{"h":"Hardware","p":["According to the SDK documentation, the robot is 176 cm tall with a 177 cm arm span and weighs 70 kg without hands. It has 42 degrees of freedom driven by integrated joint motors: 2 in the head, 7 per arm, 2 in the waist, 6 per leg and 6 per third-generation hand. Both arms together carry up to 15 kg, and the waist rotates ±162°, giving a working range from the floor to 1.8 m.","Its signature feature is a dual-battery system with autonomous swapping: the robot removes and inserts its own pack in under three minutes and can run in single- or dual-battery mode. Power comes from a 48 V Li-ion pack, and the documentation lists about 2.5 hours of combined endurance. Perception uses a head-mounted RGB stereo pair with learned depth estimation, plus a depth camera, six-axis force sensor, IMU and fisheye camera."]},{"h":"Software and AI","p":["The on-board computer pairs x86 with NVIDIA Jetson Orin, running Ubuntu and UBTECH's ROSA 2.0 with OTA updates. On top sit Co-Agent, an industrial agent for intent understanding, task planning, tool use and anomaly handling, and BrainNet 2.0, which coordinates multiple robots on a production line as a swarm."]},{"h":"Use cases and deployments","p":["Walker S2 is used in automotive manufacturing, smart factories, logistics and data collection centers. UBTECH lists partners including BYD, Geely, Dongfeng Liuzhou, FAW-Volkswagen Qingdao, Audi FAW, BAIC, Foxconn and SF Express. In September 2025 it signed a record 250 million yuan contract, and a data-center deployment in Zigong was worth 159 million yuan.","UBTECH says humanoid orders reached 1.4 billion yuan (about $200 million) in 2025. An Omdia estimate cited in Chinese media puts its 2025 humanoid shipments at about 1,000 units."]},{"h":"Manufacturer","p":["UBTECH Robotics is headquartered in Shenzhen and led by founder and CEO James Zhou. It has been listed in Hong Kong since 2023. First-half 2025 revenue was 621 million yuan with a 440 million yuan loss. The company targeted 5,000 units of annual capacity in 2026 and 10,000 in 2027, and in January 2026 spoke of more than 10,000 units in 2026."]},{"h":"Price and availability","p":["The robot is sold to industrial customers, usually as a turnkey solution for a specific process. UBTECH does not publish a list price."]}],"timeline":[["2025-07","Walker S2 available to industrial buyers"],["2025-09","Record 250 million yuan contract"],["2025-11","Mass production and delivery of the first several hundred units"],["2026-01","Airbus buys Walker S2 for aviation manufacturing trials"]],"faq":[["How does Walker S2 swap its battery?","It removes and inserts its own pack in under three minutes; with two batteries it can keep working continuously."],["How tall and heavy is Walker S2?","176 cm and 70 kg without hands, per the SDK documentation."],["Where is Walker S2 deployed?","At BYD, Geely, Dongfeng, FAW-Volkswagen and Foxconn sites, among others, and at Airbus."],["How much does Walker S2 cost?","UBTECH does not publish a list price; robots are sold through industrial contracts."],["How many degrees of freedom does Walker S2 have?","42 in the configuration with third-generation hands."]],"sources":[{"title":"Walker S2","publisher":"UBTECH","url":"https://www.ubtrobot.com/en/humanoid/products/walker-s2","date":"2026-10"},{"title":"Walker S2 SDK Secondary Development Document","publisher":"UBTECH","url":"https://a.storyblok.com/f/298593/x/1329253096/ubtech-walker-s2-sdk-secondary-development-document-external.pdf","date":"2025"},{"title":"UBTECH Humanoid Robot Walker S2 Begins Mass Production and Delivery, with Orders Exceeding 800 Million Yuan","publisher":"UBTECH via PR Newswire / Kyodo","url":"https://kyodonewsprwire.jp/release/202511179261","date":"2025-11-17"},{"title":"World's first large delivery of humanoid workers","publisher":"Interesting Engineering","url":"https://interestingengineering.com/ai-robotics/worlds-first-large-delivery-of-humanoid-workers","date":"2025-11-14"},{"title":"China's UBTECH expands overseas reach with Airbus robot deal","publisher":"China Daily / Invest in China","url":"http://investinchina.chinaservicesinfo.com/s/202601/23/WS6973392b498e23165e06d012/chinas-ubtech-expands-overseas-reach-with-airbus-robot-deal.html","date":"2026-01-23"}],"updated":"2026-10-10"},"mera":{"rental_with_operator":false,"sale_in_offer":false,"availability":"confirmation_required","shop_url":null},"url":"https://merarobotics.com/blog/humanoids/ubtech-walker-s2","inquiry_url":"https://merarobotics.com/en/start?service=purchase&robot=ubtech-walker-s2"}