Walker S2
UBTech's all-new full-size industrial humanoid, launched on July 23, 2025, standing 176 cm and weighing 70 kg…

Industrial humanoids built for welding, fabrication and heavy industry.
Persona AI is a Houston startup founded in 2025 by former NASA Valkyrie and Figure leaders Nicolaus Radford, Jerry Pratt and Jide Akinyode. Its modular bipedal humanoid is designed for skilled industrial work such as welding, grinding, inspection and fabrication in shipyards, steel shops and energy sites. The company has demonstrated untethered welding in a real steel-fabrication shop, signed a joint development agreement with HD Hyundai and a partnership with classification society ABS, and says it is targeting two work shifts per day with a quick-swap battery.
| Form factor | Full-size |
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| Locomotion | Bipedal |
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| Battery swap | Yes |
| Hands | In-house dexterous hand development; specifications undisclosed. |
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| Availability | Early industrial pilots and joint development programs; leasing model offered. |
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| Target market | Shipbuilding, steel fabrication, construction, energy and mining. |
| Software / OS | Persona AI teleoperation and autonomy stack with a modular hardware platform and tool-use apps. |
| Deployments & partners | Welding trials in a Louisiana steel-fabrication shop; HD Hyundai shipyard joint development; ABS partnership. |
Claims on this profile are linked to primary reporting and manufacturer material where available.
Specifications are sourced from public materials and may change. Always confirm commercial terms with the manufacturer.