Mass production
Unitree
G1
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Height132 cm
Degrees of freedom23
Arm payload2 kg
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Official / editorial imageImage source ↗
S1
星尘智能
The S1 is an AI robot assistant officially launched by Astribot on August 19, 2024: a wheeled chassis paired with a humanoid upper body, standing 170 cm tall and weighing 80 kg, with a 194 cm arm span, seven degrees of freedom per arm, and a 5 kg rated payload per arm (arm extended).
Pilot deploymentVerified Last verified 26 Aug 2026
Height170 cm
Degrees of freedom—
Arm payload5 kg
Top speed—
Battery life4 h
Starting pricePrice on request
What it is
The S1 is an AI robot assistant officially launched by Astribot on August 19, 2024: a wheeled chassis combined with a humanoid upper body, 170 cm tall, 80 kg, with a 194 cm arm span and seven degrees of freedom per arm. It has a 5 kg rated payload per arm (arm extended), an end-effector top speed of up to 10 m/s, a maximum acceleration of about 100 m/s², repeat positioning accuracy of ±0.1 mm, and 4–6 hours of battery life. Its April 2024 debut video, "Astribot S1: Hello World!", demonstrated clothes folding, sorting, wok tossing and cooking, vacuuming, and competitive cup stacking, drawing global attention for its extremely high speed and smooth, compliant manipulation.
Highlights
01End-effector top speed of 10 m/s, faster than human manipulation
025 kg rated payload per arm (arm extended) and ±0.1 mm repeat positioning accuracy
03Cable-driven transmission plus DuoCore fast/slow coordination for delicate tasks such as cooking, calligraphy, and playing the piano
The numbers
Body
| Height | 170 cm |
|---|---|
| Weight | 80 kg |
| Dimensions | Arm span 194 cm |
| Form factor | Full-size |
Motion & power
| Locomotion | Wheeled |
|---|---|
| Arm payload | 5 kg |
| Battery life | 4 h |
| Actuators | Innovative cable-driven transmission design, DuoCore fast/slow coordination system, muscle-level force control with millisecond latency and millimeter-level trajectory accuracy; seven degrees of freedom per arm; two-finger gripper (dexterous hand in development) |
| Speed notes | End-effector top speed ≥10 m/s (not locomotion speed) |
| Battery notes | 4–6 hours of battery life; supports mains power |
Compute, sensing & hands
| Compute | Embodied foundation models are deeply integrated with the hardware; the platform provides APIs, a visual interface, a simulation platform, and AI deployment workflows for research and developers, and supports external models such as Physical Intelligence |
|---|---|
| Sensing | Vision (multiple cameras) · Force sensors |
| Hands | Two-finger gripper (grip force up to 200 N, open/close time about 0.1 s, per media reports); dexterous hand in development |
Platform & deployment
| Availability | Pilot deployments / limited availability |
|---|
Evidence trail
Claims on this profile are linked to primary reporting and manufacturer material where available.
Specifications are sourced from public materials and may change. Always confirm commercial terms with the manufacturer.
Pilot deployment
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Pilot deployment
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Degrees of freedom31
Arm payload7 kg
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