Unitree As2 vs Unitree Go2
Better figure, where one is clearly better
| UnitreeAs2 | UnitreeGo2 | |
|---|---|---|
| Overview | ||
| Released | – | – |
| Task and control | ||
| Form | Quadruped | Quadruped |
| Use | Education, Research, Inspection | Companion, Education, Research |
| User programming | No / Yes | Yes |
| Phone app | Yes | Yes |
| Intended use | Education, research and inspection applications; select the X/EDU variants for the maker's supported secondary-development interfaces. Air/Pro are not equivalent open development platforms. | Air and Pro provide remote-control and demonstration functions; EDU is the maker's configuration for robotics research and secondary development. |
| Movement | Air 0–3.0 m/s; Pro/X/EDU 0–3.7 m/s, with approximately 5 m/s maximum claimed for X/EDU. Published slope capability is about 30° for Air or 40° for the others; stair heights 20 cm for Air or 25 cm for the others. These are maker laboratory figures, not independent terrain tests. | Air 0–2.5 m/s, Pro 0–3.5 m/s and X/EDU 0–3.7 m/s, with an approximately 5 m/s maximum claim for X/EDU. Published climbing angles are 30° for Air and 40° for the other configurations; performance depends on terrain and configuration. |
| Autonomy | ISS 3.0 side-following is listed for Pro/X/EDU, absent for Air. The maker warns that some shown examples are still under development/testing. General application descriptions do not prove unattended inspection or autonomous household work as delivered. | LiDAR-based detection and avoidance are listed across the range. ISS 2.0 side-following is included on Pro, X and EDU, rather than Air. Demonstrations and AI descriptions do not establish general autonomous household work. |
| User programming | Secondary development is explicitly unsupported on Air and Pro, supported on X and EDU. UniStore platform support is listed across configurations; access to motion routines differs from developer joint/sensor interfaces. | The maker lists graphical programming across the range, so basic app programming is distinct from full secondary development. Its comparison table lists none for Air/Pro, partial access for X and full access for EDU; select the development configuration required for the task. |
| Remote control | Controller optional on Air and included with Pro/X/EDU. Maker As2 app available. | App control; handheld controller optional on Air/Pro and included with X/EDU in the maker's comparison. Store bundles also offer Air/Pro with a controller. |
| Regional availability | The official global store accepts orders for As2 Air and Pro; EDU is a contact-sales option. X appears in the maker's specification table but is not a selectable public-store configuration in the inventory checked. Local delivery/import conditions require confirmation; current range presence does not guarantee immediate UK stock. Checked October 2026. | The official global store accepts orders for Air, Pro and X; its selected product variants are available and its delivery note says shipment within one month. EDU requires a sales quotation. Freight, import clearance and destination rules apply; this is not a statement of immediate UK warehouse stock. Checked October 2026. |
| Release details | Unitree's own introduction video is dated 24 February 2026. The first retail delivery date is not established; the April 2026 store listing timestamp is not treated as first sale. | Unitree's dated press release confirms the announcement on 12 July 2023. The first retail delivery date is not established by the sources used; the store listing's creation date is not treated as first sale. |
| Hardware | ||
| Degrees of freedom | 12 | 12 |
| Height | 457 mm | 400 mm |
| Width | 378 mm | 310 mm |
| Depth | 720 mm | 700 mm |
| Robot weight | 20 kg | 15 kg |
| Camera | Yes | Yes |
| Microphone | Yes | – |
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | Yes |
| Processing | Eight-core high-performance CPU across configurations. EDU can add optional high-computing-power modules, including Orin NX configurations. | Eight-core high-performance CPU listed for Pro, X and EDU; the maker's table does not list that computing specification for Air. EDU offers additional compute modules, including Orin configurations. |
| Sensors | Air uses Unitree L2 ultra-wide-angle LiDAR; Pro/X/EDU use industrial-grade 64–128-line LiDAR. HD camera and dual joint encoders across the range. | Ultra-wide-angle 4D LiDAR and HD wide-angle camera across the range; foot-end force sensors and a depth camera are listed for EDU. |
| Camera | HD camera listed for all configurations; no exact image-resolution figure is published in the table used. | Front HD wide-angle camera; real-time image transmission through the app. EDU adds a depth camera. |
| Audio | Microphone and speaker across configurations. | Voice function is listed for Pro, X and EDU; the maker marks it absent for Air. |
| Actuators | Twelve joint motors, industrial crossed-roller bearings and local air cooling. Maximum largest-joint torque about 65 N·m for Air, 75 N·m for Pro or 95 N·m for X/EDU; the overview's 95 N·m does not apply to the whole range. | Twelve aluminium knee-joint motor assemblies; approximately 45 N·m maximum largest-joint torque is listed for Pro/X/EDU. This is not the torque of every joint or a combined total. |
| Payload | Continuous-walking load approximately 10 kg Air, 13 kg Pro or 15 kg X/EDU. Maximum standing load approximately 45/55/65/65 kg respectively. A stationary load is not a walking payload. | Air approximately 7 kg, maximum approximately 10 kg; Pro approximately 8 kg, maximum approximately 10 kg; X/EDU approximately 8 kg, maximum approximately 12 kg. Retain the maker's distinction between normal and maximum loads. |
| Connections | Wi-Fi 6, Bluetooth 5.2, gigabit Ethernet, SBUS and battery-power output. Pro/X/EDU also list GPS and 4G, disabled by default and enabled with user authorisation; Air does not. Regional functionality restrictions may apply. | Dual-band Wi-Fi 6 and Bluetooth 5.2/4.2/2.1; 4G module with GPS on Pro/X/EDU rather than Air. |
| Size and weight | Standing length × width × height 720 × 378 × 457 mm; prone 776 × 378 × 233 mm. Approximately 20 kg with battery. Aluminium alloy and high-strength engineering plastic. | Standing length × width × height 70 × 31 × 40 cm; crouching 76 × 31 × 20 cm. Approximately 15 kg with battery; aluminium alloy and high-strength engineering plastic. |
| Durability | IP54 is published for Pro/X/EDU, not Air. Operating temperature −20 to 50°C for Air/Pro or −20 to 55°C for X/EDU. IP54 is not an immersion rating. | No ingress-protection rating is published on the exact Go2 specification page used. |
| Battery | ||
| Battery life (maker's claim) | About 2 hours of unloaded continuous walking / About 4 hours of unloaded continuous walking | About 1–2 hours / About 2–4 hours |
| Battery capacity | 8,000–15,000 mAh | 8,000–15,000 mAh |
| Battery | Air supplied with standard 8,000 mAh battery; Pro/X/EDU with long-range 15,000 mAh battery. The overview gives 648 Wh for the larger pack. Supply voltage 36–50.4 V. | Standard battery 8,000 mAh on Air/Pro/X; long-endurance 15,000 mAh battery listed for EDU. Battery removable. Operating voltage 28–33.6 V. |
| Charging | Air standard 50.4 V 4 A charger; Pro/X/EDU 50.4 V 7.4 A fast charger. No exact full-charge duration is published in the comparison table used. | Air/Pro/X standard 33.6 V 3.5 A charger; EDU 33.6 V 9 A fast charger. |
| Runtime conditions | Air about 2 hours/10 km unloaded, or more than 1.5 hours/about 7 km carrying 10 kg. Pro about 4 hours/20 km unloaded, or more than 2.5 hours/about 13 km carrying 13 kg. X/EDU about 4 hours/20 km unloaded, or more than 2.5 hours/about 13 km carrying 15 kg. Maker laboratory claims; the overview's longest figures are not standard Air performance. | Maker claims about 1–2 hours with the standard battery and about 2–4 hours with the long-endurance battery. The headline longer runtime is not standard across configurations; actual runtime varies by conditions. |
| Dock | Charging dock listed for EDU, absent for Air/Pro/X. Dock presence is not proof of autonomous return-to-charge behaviour. | Charging-pile compatibility is listed for X and EDU, absent for Air/Pro. Compatibility alone does not establish an autonomous return-to-dock function or an included dock. |
