Compare humanoids
Pick two to four robots. Every pair also has its own permanent page, 1,326 in total, generated from the same records.
01
Pick robots
52 humanoidsNo height, mass, DOF or payload figure is sourced for both Cassie and UBTech Walker S (S1 / S2) yet. Openness score: Cassie 20, UBTech Walker S (S1 / S2) 0 (of 100); only Cassie publishes SIM. Availability: Cassie research only, UBTech Walker S (S1 / S2) buy.
| Field | Agility RoboticsAgility Cassie | UBTech RoboticsUBTech Walker S (S1 / S2) | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Agility Robotics | UBTech Robotics | |
| Class (differs) | Biped | Humanoid | |
| Status (differs) | Discontinued | Active | |
| Availability (differs) | Research only | Buy | |
| Country (differs) | United States | China | |
| Year (differs) | 2017 | 2023 | |
| Specifications | |||
| Height | —unsourced | —unsourced | |
| Mass | —unsourced | —unsourced | |
| Degrees of freedom | 10 | —unsourced | |
| Payload | —unsourced | 15kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime | —unsourced | —unsourced | |
| Battery capacity | —unsourced | —unsourced | |
| Price | Not for sale | —unsourced | |
| Actuators | —unsourced | Servo joints with force feedback | |
| Compute | —unsourced | BrainNet 2.0 + Co-Agent (UBTech software) | |
| Sensors | —unsourced | RGB binocular stereo vision (S2) | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 20/ 100 | 0/ 100 | +20 |
| CAD (25) | not public | not public | |
| Bill of materials (20) | not public | not public | |
| Sim model (URDF/MJCF) (20) (differs) | public | not public | |
| Firmware (15) | not public | not public | |
| Software (10) | not public | not public | |
| Trained policies (10) | not public | not public | |
| Verification level (differs) | L2 | L0 | |
| Sources | 3 | 3 | |
| Last checked | 2026-09-24 | 2026-09-24 | |
03
Best-documented pairs
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