Unitree As2 Quadruped Robot
Version:As2 Pro
Unitree AS2 Technical Specifications
Compare AS2 Air, AS2 Pro, AS2 X, and AS2 EDU.
| Specifications | AS2 Air | AS2 Pro | AS2 X | AS2 EDU |
|---|---|---|---|---|
| Mechanical Dimensions | ||||
| Size (Standing) | 720 × 378 × 457 mm | 720 × 378 × 457 mm | 720 × 378 × 457 mm | 720 × 378 × 457 mm |
| Size (Lying Prone) | 776 × 378 × 233 mm | 776 × 378 × 233 mm | 776 × 378 × 233 mm | 776 × 378 × 233 mm |
| Weight (with Battery) | Approx. 20 kg | Approx. 20 kg | Approx. 20 kg | Approx. 20 kg |
| Material | Aluminum alloy + high-strength engineering plastic | Aluminum alloy + high-strength engineering plastic | Aluminum alloy + high-strength engineering plastic | Aluminum alloy + high-strength engineering plastic |
| Degrees of Freedom | 12 | 12 | 12 | 12 |
| Joint Bearings | Industrial-grade crossed roller bearings | Industrial-grade crossed roller bearings | Industrial-grade crossed roller bearings | Industrial-grade crossed roller bearings |
| Joint Motors | Low-inertia, high-speed inner rotor PMSM | Low-inertia, high-speed inner rotor PMSM | Low-inertia, high-speed inner rotor PMSM | Low-inertia, high-speed inner rotor PMSM |
| Max Joint Torque | 65 N·m | 75 N·m | 95 N·m | 95 N·m |
| Range of Motion |
Body: −45° to 45° Thigh: −115° to 200° Shank: −159° to −47° |
Body: −45° to 45° Thigh: −115° to 200° Shank: −159° to −47° |
Body: −45° to 45° Thigh: −115° to 200° Shank: −159° to −47° |
Body: −45° to 45° Thigh: −115° to 200° Shank: −159° to −47° |
| Electrical Characteristics | ||||
| Supply Voltage | 36–50.4 V | 36–50.4 V | 36–50.4 V | 36–50.4 V |
| Joint Encoder | Dual encoders | Dual encoders | Dual encoders | Dual encoders |
| Cooling System | Local air cooling | Local air cooling | Local air cooling | Local air cooling |
| Power Supply | Lithium battery | Lithium battery | Lithium battery | Lithium battery |
| Wi-Fi 6 / Bluetooth 5.2 | Yes | Yes | Yes | Yes |
| Speaker | Yes | Yes | Yes | Yes |
| Microphone | Yes | Yes | Yes | Yes |
| Front Light | Yes | Yes | Yes | Yes |
| ISS 3.0 Intelligent Side-Follow System | — | Yes | Yes | Yes |
| GPS | — | Yes* | Yes* | Yes* |
| 4G | — | Yes* | Yes* | Yes* |
| HD Camera | Yes | Yes | Yes | Yes |
| Ultra-Wide-Angle LiDAR | Unitree L2 | Industrial-grade 64–128-line LiDAR | Industrial-grade 64–128-line LiDAR | Industrial-grade 64–128-line LiDAR |
| Computing Power | 8-core high-performance CPU | 8-core high-performance CPU | 8-core high-performance CPU | 8-core high-performance CPU |
| External Interfaces |
Gigabit Ethernet × 1 SBUS × 1 Power output: BAT |
Gigabit Ethernet × 1 SBUS × 1 Power output: BAT |
Gigabit Ethernet × 1 SBUS × 1 Power output: BAT |
Gigabit Ethernet × 1 SBUS × 1 Power output: BAT |
| Performance Metrics | ||||
| Operating Temperature | −20°C to 50°C | −20°C to 50°C | −20°C to 55°C | −20°C to 55°C |
| Battery Life (Unloaded) | Approx. 2 hours / 10 km | Approx. 4 hours / 20 km | Approx. 4 hours / 20 km | Approx. 4 hours / 20 km |
| Battery Life (Loaded) | 10 kg: >1.5 hours / 7 km | 13 kg: >2.5 hours / 13 km | 15 kg: >2.5 hours / 13 km | 15 kg: >2.5 hours / 13 km |
| Max Standing Load | 45 kg | 55 kg | 65 kg | 65 kg |
| Continuous Walking Load | 10 kg | 13 kg | 15 kg | 15 kg |
| Slope Walking Capability | 30° | 40° | 40° | 40° |
| Stair Climbing Capability | 20 cm | 25 cm | 25 cm | 25 cm |
| Speed | 0–3.0 m/s | 0–3.7 m/s | 0–3.7 m/s (up to approx. 5 m/s) |
0–3.7 m/s (up to approx. 5 m/s) |
| Protection Rating | — | IP54 | IP54 | IP54 |
| Accessories | ||||
| Remote Controller | Optional | Included | Included | Included |
| Battery Capacity | 8,000 mAh × 1 | 15,000 mAh × 1 | 15,000 mAh × 1 | 15,000 mAh × 1 |
| Charger | Standard (50.4 V / 4 A) |
Fast (50.4 V / 7.4 A) |
Fast (50.4 V / 7.4 A) |
Fast (50.4 V / 7.4 A) |
| Charging Dock | — | — | — | Yes |
| High Computing Power Expansion Dock | — | — | — | Multiple brands/models available, such as Orin NX |
| Other | ||||
| Secondary Development | Not supported | Not supported | Supported | Supported |
| UniStore Platform | Supported | Supported | Supported | Supported |
| Smart OTA Upgrade | Continuous upgrades | Continuous upgrades | Continuous upgrades | Continuous upgrades |
| Manufacturer Warranty | 6 months | 12 months | 12 months | 12 months |
Notes: Specifications are based on Unitree manufacturer information and laboratory testing. Actual performance may vary depending on terrain, payload, temperature, battery condition, and operating environment.
* GPS and 4G functionality are disabled by default and require user authorization. Regional restrictions may apply.
Secondary development is supported only on AS2 X and AS2 EDU.
Specifications, included accessories, and features are subject to change without notice.