Untree AS2

Untree AS2

In February 2026, multiple technology outlets reported AS2 as a newly unveiled model positioned for industrial and outdoor applications, highlighting its speed, payload, and range improvements relative to smaller consumer-oriented quadrupeds.

At a high level, the AS2 is designed around:

• High-torque leg joints (up to ~90 N·m in published specs)

• Longer “no-load” endurance (over 4 hours / ~20 km with long-range battery in published figures)

• Industrial perception options, including LiDAR configurations and an HD camera

• An industrial-oriented feature set (e.g., IP54 rainproof rating for higher configurations, secondary development support for developer-oriented configurations)

Design and Features

Compact industrial form factor

Unitree describes AS2 as “compact” while emphasizing industrial-grade components such as high-strength engineering plastics + aluminum alloy construction and industrial-grade crossed roller bearings for the joints—components chosen for precision and load capacity.

12-DOF legged mobility with high-torque joints

AS2 is listed with 12 degrees of freedom (joint motors)—typical for quadrupeds that need agile gait generation (three joints per leg). Unitree also highlights low-inertia, high-speed inner rotor PMSM (permanent magnet synchronous motors) and dual encoders in the joint stack, aiming for responsive torque control and accurate joint state sensing.

A commonly highlighted performance spec is maximum joint torque up to ~90 N·m, depending on configuration.

Mobility envelope for real environments

Unitree publishes mobility capabilities relevant to field use:

• Slope walking capability: up to ~40° (for higher configurations shown on the page)

• Stair climbing capability: up to 25 cm (for higher configurations shown)

• Speed: listed up to 0–3.7 m/s, with an “up to ~5 m/s” note for the highest configuration.

These figures position AS2 as a fast, agile quadruped relative to many inspection-class robots, while remaining smaller than heavy industrial quadrupeds.

Perception and comms options (LiDAR, camera, Wi-Fi/4G)

The AS2 page lists an HD camera and an ultra-wide-angle LiDAR option (Unitree L2 in one column) and industrial-grade 64–128-line LiDAR in other columns, implying configuration-dependent sensor packages.
Connectivity features include Wi-Fi 6 and Bluetooth 5.2, and for certain configurations GPS and 4G are listed as available but “disabled by default” and enabled with user authorization.

Industrial weather resistance (configuration dependent)

Unitree lists IP54 protection ratings for some AS2 configurations, positioning the robot as rain-resistant rather than fully waterproof—appropriate for light outdoor exposure and industrial environments where splashes and dust are expected.

Battery ecosystem and docking (configuration dependent)

AS2 is shown with a standard 8000 mAh battery option and a long-range 15000 mAh battery option depending on configuration, plus a fast charging charger (51V 9A) for long-range variants.
A charging dock is listed as available in the top configuration column, aligning with autonomous “return-to-charge” style deployments.

Secondary development (developer support)

Unitree lists “Secondary Development: Supported” for the top configuration, while it is “Not Supported” for lower configurations—an important distinction for buyers who need ROS integration, custom autonomy stacks, payload control, or research workflows.
An optional high computing power expansion dock with NVIDIA Jetson Orin NX is also listed for the top configuration.

Technology and Specifications

Published headline specifications (AS2 family)

Unitree’s AS2 page and spec summary highlight:

• Lightweight design: approximately 18 kg with battery

• Maximum joint torque: up to ~90 N·m (configuration dependent)

• Protection rating: IP54 (for higher configurations shown)

• Operating temperature: -20°C to 50°C

Payload: standing vs continuous walking

Unitree distinguishes between:

• Max standing load: up to ~65 kg (highest configuration shown)

• Continuous walking load: approximately 15 kg (highest configuration shown)

Range and runtime (unloaded vs loaded)

Unitree publishes battery life in two operating regimes:

• Unloaded: up to ~4 hours continuous walking / ~20 km (for long-range configurations shown)

• Loaded: with 15 kg, >2.5 hours / ~13 km (highest configuration shown)

Applications and Use Cases

Industrial inspection and patrol

AS2 is positioned as a compact industrial quadruped suited to site patrol, equipment inspection rounds, and security/monitoring routes where stairs, ramps, and uneven surfaces may appear, and where wheeled robots can struggle. Recent coverage explicitly frames AS2 for industrial and outdoor applications.

Mobile payload carrier for field teams

With a sustained walking payload listed around 15 kg and a larger standing payload rating, AS2 can serve as a mobile carrier for tools, sensors, or supplies on campuses and industrial sites.

Research and secondary development deployments

For the configuration that supports secondary development and an optional Jetson Orin NX expansion, AS2 can be used as a robotics platform for custom autonomy, sensor fusion, and human–robot interaction experiments.

Advantages / Benefits

High performance in a compact class

Unitree’s positioning (“dynamic performance ≈ 2× Go2”) combined with published speed and torque figures suggests AS2 is tuned for higher-performance locomotion than many smaller consumer quadrupeds while remaining compact enough for indoor corridors and mixed environments.

Clear, configuration-based scaling

AS2’s published table indicates distinct configurations with different payload, runtime, IP rating, LiDAR options, and developer support. This helps buyers choose between “ready-to-use” field deployment and developer-focused stacks without overpaying for features they do not need.

Longer endurance for long routes

The long-range configuration’s published >4 hours / ~20 km unloaded endurance is aimed at meaningful patrol/inspection routes and reduces the frequency of charging interventions.

FAQ 

What is Unitree AS2?

Unitree AS2 is a compact, industrial-capable quadruped robot dog designed for fast locomotion, moderate payload carrying, and LiDAR/camera perception in indoor and outdoor environments.

How does Unitree AS2 work?

AS2 uses 12 motorized joints, high-torque actuators (up to ~90 N·m in published specs), and perception options (HD camera + LiDAR packages) to walk, run, climb, and carry loads, with configuration-dependent developer support.

Why is Unitree AS2 important?

It targets the gap between consumer quadrupeds and large industrial robot dogs by combining compact size with industrial-grade components, longer endurance options, and configuration-based scalability for real deployments.

What are the benefits of Unitree AS2?

Commonly highlighted benefits include high joint torque (up to ~90 N·m), long-range endurance options (>4 hours unloaded), IP54 rain resistance (higher configurations), and strong mobility (25 cm stairs, ~40° slopes).

Summary

The Unitree AS2 (often misspelled “Untree AS2”) is a compact industrial quadruped robot positioned for inspection, patrol, and field support tasks that demand fast locomotion, meaningful endurance, and modern LiDAR/camera perception. With published specifications such as ~18 kg weight, up to ~90 N·m joint torque, IP54 (configuration dependent), 25 cm stair capability, ~40° slope walking, and >4 hours / ~20 km unloaded endurance (long-range configuration), AS2 represents Unitree’s push toward smaller industrial-capable robot dogs that scale from basic deployment to developer-focused configurations with optional compute expansion.