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Unitree G1 vs Walker S2
Unitree Robotics
Unitree G1
A compact, aggressively priced humanoid that has become the default research and education platform.
View profile →UBTech
Walker S2
UBTech's flagship industrial humanoid with a world-first autonomous hot-swap battery for 24/7 operation.
View profile →Specs that differ are highlighted; the stronger value is marked.
| Metric | Unitree G1 | Walker S2 |
|---|---|---|
| Identity | ||
| Manufacturer | Unitree Robotics | UBTech |
| Country | China | China |
| First unveiled | 2024 | 2025 |
| Audiences | R&D · B2B | B2B |
| Physical | ||
| Height | 132 cm | 176 cm |
| Weight | 35 kg | 73 kg |
| DOF | 23 | 52 |
| Mobility | ||
| Locomotion | bipedal | bipedal |
| Walking speed | 2 m/s | 2 m/s |
| Stairs | Yes | Yes |
| Outdoor | Yes | No |
| Power | ||
| Runtime | 120 min | — |
| Hot-swap | Yes | Yes |
| Compute & AI | ||
| Primary compute | Onboard compute (NVIDIA Jetson on EDU configs) | Intel Core i7-1185G7 |
| AI accelerator | — | NVIDIA Jetson AGX Orin (275 TOPS) |
| VLM | Yes | Yes |
| Manipulation | ||
| Payload | 3 kg | 15 kg |
| End effectors | three-finger gripper (optional dexterous hand) | Gen-4 dexterous hand (11 DOF each) |
| Fingers/hand | — | 5 |
| Autonomy | ||
| Task planning | ml-policy | llm-agent |
| Teleoperation | Yes | Yes |
| Voice | No | Yes |
| Availability | ||
| Stage | general-availability | general-availability |
| Price (USD) | $13500 | On request |