A2 vs Astribot S1: Specs, Price & ROS Support Compared (2025)
AgiBot (Zhiyuan Robotics) vs Stardust Intelligence — independent, side-by-side analysis.
Quick Verdict
A2 leads in more DOF, higher payload, while Astribot S1 leads in longer runtime. Overall, A2 has an edge in 2 out of 3 compared categories.
A2
AgiBot (Zhiyuan Robotics)
Astribot S1
Stardust Intelligence
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A2 Astribot S1
Specifications
$100,000Price$100,000
169 cmHeight170 cm
69 kgWeight80 kg
40DOF36
15 kgPayload10 kg
2hRuntime5h
3.3 m/sSpeed—
YesStairs—
YesLiDARYes
200 TOPSComputeLinux-based
Task Capabilities
✓Pick up a box from shelf?
✓Open a door handle?
✓Pour liquid into cup?
◔Use a power tool?
◔Type on keyboard?
✓Climb stairs with load?
◔Walk on uneven terrain?
✓Run (>3 m/s)?
◔Crouch under obstacle?
✓Navigate in crowd?
✓Recognize & locate objects?
✓Respond to voice commands?
✓Detect humans nearby?
✕Work 8-hour shift?
?Hot-swap battery?
◔Operate 24/7 (with charging)?
✕Work in rain (IP65+)?
✕Work below 0°C?
✕Work in dusty environment?
✓Work safely alongside humans?
Ecosystem Openness
60
A2
/100
—
Astribot S1
AimRT framework (ROS2/gRPC/MQTT). Chinese docs primarily.
Pros and cons at a glance
A2
Pros
- Shipping to customers (verified commercial availability)
- Ships with LiDAR for robust depth sensing in low-light environments
- 40 degrees of freedom — full-body articulation
Cons
- Short runtime (120 min) — frequent recharging or battery swaps
Astribot S1
Pros
- Shipping to customers (verified commercial availability)
- Ships with LiDAR for robust depth sensing in low-light environments
- 36 degrees of freedom — full-body articulation
Frequently asked questions
Which is cheaper: A2 or Astribot S1?
Astribot S1 is cheaper at $100,000 vs $100,000 for A2. Note that lower price does not imply lower total cost of ownership — see the TCO calculator on the Explore page for utilisation-adjusted figures.
Which has higher payload: A2 or Astribot S1?
A2 rates a higher payload at 15 kg vs 10 kg. Payload ratings are vendor claims and do not always include a duty cycle — peak vs sustained payload can differ significantly.
Are both A2 and Astribot S1 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.
Last updated: 2025