GR-2 vs Walker S2: Specs, Price & ROS Support Compared (2025)
Fourier Intelligence vs UBTECH Robotics — independent, side-by-side analysis.
Quick Verdict
GR-2 leads in more DOF, while Walker S2 leads in higher payload, faster speed. Overall, Walker S2 has an edge in 2 out of 3 compared categories.
GR-2
Fourier Intelligence
Walker S2
UBTECH Robotics
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GR-2 Walker S2
Specifications
ContactPrice$90,000
175 cmHeight176 cm
63 kgWeight73 kg
53DOF52
3 kgPayload15 kg
2hRuntime—
1.39 m/sSpeed2 m/s
YesStairsYes
NoLiDARNo
NVIDIA Isaac Lab ecosystemComputeN/A
Ecosystem Openness
65
GR-2
/100
—
Walker S2
Same ecosystem as GR-1. Improved tactile SDK.
Pros and cons at a glance
GR-2
Pros
- Shipping to customers (verified commercial availability)
- 53 degrees of freedom — full-body articulation
Cons
- Unit price not publicly disclosed (quote-on-request or enterprise-only)
- Low rated payload (3 kg) — research or light-handling tasks only
- Short runtime (120 min) — frequent recharging or battery swaps
Walker S2
Pros
- Shipping to customers (verified commercial availability)
- 52 degrees of freedom — full-body articulation
Cons
- Closed software stack — no public SDK or ROS support
Frequently asked questions
How do GR-2 and Walker S2 compare on price?
GR-2: Contact. Walker S2: $90,000. Only one of the two has a public unit price; the other publishes a range or enterprise-only terms.
Which has higher payload: GR-2 or Walker S2?
Walker S2 rates a higher payload at 15 kg vs 3 kg. Payload ratings are vendor claims and do not always include a duty cycle — peak vs sustained payload can differ significantly.
Are both GR-2 and Walker S2 shipping to customers?
Yes. Both are commercially available as of the last review. Delivery timelines and customer geographies vary per vendor — check the manufacturer page for each.
Which is better for ROS-based development: GR-2 or Walker S2?
GR-2 has ROS 1 only; Walker S2 has no ROS support. For research and multi-vendor robotics stacks, native ROS 2 is the strongest signal of ecosystem maturity.
Last updated: 2025
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