Walker S2 vs PM01: Specs, Price & ROS Support Compared (2025)
UBTECH Robotics vs EngineAI Robotics — independent, side-by-side analysis.
Quick Verdict
Walker S2 leads in more DOF, while PM01 leads in lower price. The two robots are evenly matched, each excelling in different areas.
Walker S2
UBTECH Robotics
PM01
EngineAI Robotics
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Walker S2 PM01
Specifications
$90,000Price$13,700
176 cmHeight138 cm
73 kgWeight40 kg
52DOF23
15 kgPayload—
—Runtime2h
2 m/sSpeed2 m/s
YesStairsYes
NoLiDARYes
N/AComputeIntel N97 + NVIDIA Jetson Orin (dual compute)
Ecosystem Openness
—
Walker S2
/100
45
PM01
Linux + developer SDK. Dual compute for custom dev.
Pros and cons at a glance
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
PM01
Pros
- Shipping to customers (verified commercial availability)
- Affordable at $13,700 — accessible to research labs and SMEs
- Ships with LiDAR for robust depth sensing in low-light environments
Cons
- Short runtime (120 min) — frequent recharging or battery swaps
- Closed software stack — no public SDK or ROS support
Frequently asked questions
Which is cheaper: Walker S2 or PM01?
PM01 is cheaper at $13,700 vs $90,000 for Walker S2. Note that lower price does not imply lower total cost of ownership — see the TCO calculator on the Explore page for utilisation-adjusted figures.
Are both Walker S2 and PM01 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.
Does Walker S2 or PM01 use LiDAR?
PM01 ships with LiDAR for depth sensing; Walker S2 does not. LiDAR adds cost and complexity but improves obstacle detection in low-light or low-contrast environments.
Last updated: 2025