Unitree Introduces As2: A Lightweight Industrial Quadruped Robot Targeting a New Market Segment

On February 24, following the viral appearance of its humanoid robots performing martial arts at the Spring Festival Gala, Unitree Technology unveiled a new quadruped robot: the Unitree As2. This marks the company’s latest move in expanding its four-legged robotics portfolio.

The As2 is positioned as a lightweight, industry-oriented quadruped robot. Although it is close in size to Unitree’s consumer flagship Go2, the company states that its dynamic performance is roughly double that of the Go2.

Compact Build, Strong Capabilities

Despite weighing only 18 kilograms, about the same as a Corgi, the As2 demonstrates notable physical capabilities:

• Can accompany users on hikes lasting over four hours
• Reaches speeds comparable to an electric bicycle
• Carries significant loads
• Operates in snow and rugged terrain
• Walks through calf-deep puddles
• Maintains balance even with a 200-pound adult standing on it

Its combination of portability and performance highlights its hybrid positioning between consumer and industrial robotics.

Product Line Context

This is Unitree’s second quadruped release in two years. Previously, the company introduced:

• Unitree B2 (November 2023), an industrial-grade model weighing around 60 kg
• Unitree A2 (August 2025), an industry-grade unit at approximately 42 kg

Both earlier models fall into a much heavier category. The As2, at 18 kg, clearly targets a lighter segment while maintaining professional-level performance.

Technical Specifications

According to official data, the As2 features:

• Weight: 18 kg
• Peak torque: 90 N·m
• Battery life: Over 4 hours without load
• Load capacity: 15 kg dynamic load
• Standing load: 65 kg rated
• Loaded range: More than 13 km
• Protection rating: IP54 (rain-resistant)
• Secondary development support: Open ecosystem for customization

Additional specifications and pricing have not yet been disclosed.

Performance Highlights from Demonstration Footage

Agility and Speed

The As2 reaches a maximum velocity of 5 m/s (18 km/h), exceeding the running speed of most adults and matching typical urban e-bikes. For comparison:

• Go2 Air: up to 2.5 m/s
• Go2 Pro: up to 3.5 m/s
• Go2 X and EDU: up to 5 m/s

This places the As2 at the top end of Unitree’s compact lineup in terms of mobility.

Terrain Adaptability

The robot is shown moving confidently through puddles and snowy slopes. Even while carrying heavy loads, it maintains stable movement on inclines. These demonstrations reinforce its positioning as suitable for complex outdoor environments.

Battery Performance

With over four hours of operation when unloaded, the As2 surpasses most consumer Go2 versions, which typically offer 1–2 hours, with only the EDU edition reaching up to 4 hours.

AI and Control System

The As2 integrates what Unitree describes as a bionic embodied large model, suggesting updated perception and motion algorithms. In demonstration videos, the robot quickly adjusts direction when a user changes movement path, with no visible latency. The footage appears to run in real time.

Such responsiveness may represent progress in embodied intelligence applications.

The robot also features an upgraded ISS 3.0 Intelligent Companion System, enabling autonomous following behavior. Future clarification is expected regarding:

• Advanced dialogue capabilities
• Integration with large language models
• Agent-based task execution
• Improved action and intention recognition

Load-Bearing Performance

Load capacity further distinguishes the As2 from consumer models:

• Rated dynamic load: 15 kg
• Rated standing load: 65 kg

For comparison, Go2 variants typically support 7–8 kg standard loads, with maximum loads ranging from 10–12 kg.

In one demonstration, a 105 kg adult male stands on the robot’s body, exceeding the official rating, yet the unit remains stable.

Expandability

Unitree states that the As2 can be equipped with optional accessories, including a 7-axis dexterous robotic arm, potentially broadening its application scenarios.

Market Positioning and Outlook

The introduction of the As2 fills a strategic gap in Unitree’s product hierarchy:

• Consumer grade: Go series
• Lightweight industry grade: As2
• Heavy industry grade: A2
• Industrial grade: B series

By bridging the space between compact consumer units and heavy-duty industrial machines, the As2 establishes a new middle tier.

Its portability, strong output, and open development ecosystem suggest potential deployment in:

• Inspection and patrol
• Research and laboratory use
• Educational environments
• Light-duty industrial tasks

Final evaluation will depend on its official pricing and additional technical disclosures.