UNITREE G1 AIR Humanoid Robot

The Unitree G1 AIR is a compact, fully electric humanoid robot engineered for professional demonstrations, live events, and remote-operated showcases. Standing 1270 mm tall and weighing approximately 35 kg, it combines 23 articulated joint motors with a LIVOX-MID360 3D LiDAR, an Intel RealSense D435i depth camera, and a quick-release 9000 mAh lithium battery delivering roughly 2 hours of continuous operation at walking speeds up to 2 m/s.

A Demonstration Platform — No Programming Required

The G1 AIR is the standard, non-programmable version of the Unitree G1 humanoid line. It operates exclusively through a handheld remote controller and evolves over time through over-the-air (OTA) firmware updates that deliver new motion presets, behaviours, and capabilities without any hardware changes. There is no SDK access, no high-level language integration, and no support for custom scripts. This makes it precisely the right tool when reliability, visual impact, and operational simplicity take priority over autonomous programmability — exhibitions, technology fairs, brand activations, museum installations, and educational demonstrations.

The overview below summarises the headline specifications across the six most buyer-relevant performance dimensions of the G1 humanoid family.

Extraordinary Range of Motion in a Human-Scale Body

Twenty-three joint motors distribute across both legs, both arms, and the torso, each actuated by low-inertia high-speed internal-rotor PMSM (permanent magnet synchronous motor) drives. The choice of PMSM over conventional brushed motors means faster torque response, lower thermal load per cycle, and significantly better longevity under repetitive movement patterns — a critical advantage for all-day event deployments. Every motor shaft uses industrial-grade crossed roller bearings at the output, matching the zero-backlash precision found in high-end CNC rotary tables.

The knee joint sustains a peak torque of 90 N·m — enough to support the robot's own body weight through deep crouch positions and stair-like step transitions. Each arm handles payloads of approximately 2 kg, sufficient for holding props, tools, or demonstration objects during scripted interactions. The combined calf-and-thigh leg segment measures 0.6 m, replicating the proportions of an adult of average height.

What sets the G1 AIR apart from earlier-generation humanoids is its joint range of motion. The waist rotates ±155° around the Z-axis. The knee bends through a full 0~165° arc — exceeding typical human range. The hip achieves ±154° pitch, -30~+170° roll, and ±158° yaw. All wiring is routed internally through hollow joint shafts: not a single external cable runs along the body surface, producing a clean aesthetic and eliminating cable-snagging failure modes. Every joint uses a dual-encoder configuration for redundant position feedback.

The following collage demonstrates the G1's full-body articulation across eight distinct dynamic and static postures.

360° Sensor Perception and On-Board Intelligence

Environmental awareness is built on a dual-layer perception stack. The LIVOX-MID360 3D LiDAR scans the surrounding space in a full 360° sphere, producing a dense point cloud that updates in real time — the robot knows where walls, furniture, and people are at all times. The Intel RealSense D435i depth camera adds stereoscopic depth estimation within the forward field of view, enabling fine-grained recognition of objects and surfaces directly in front of the robot during close interactions.

Both sensor streams feed into an 8-core high-performance CPU that manages real-time motion control, sensor fusion, and OTA update processing simultaneously. This is not a pre-mapped navigation system — the G1 AIR perceives and reacts to its live environment on every step cycle.

The annotated technical diagram below labels every major hardware component with its corresponding specification.

Audio Interaction and Wireless Connectivity

The Unitree G1 AIR carries a complete audio-interaction package. The 4-channel microphone array incorporates active noise cancellation and echo cancellation, enabling clear voice capture in noisy exhibition halls. The 5W stereo speaker provides audible, directional audio output for speech playback, alert tones, or ambient sound effects. Wireless connectivity covers WiFi 6 (802.11ax) for high-throughput data links and Bluetooth 5.2 for low-latency controller pairing and peripheral communication.

Power System and Field Endurance

A 13-cell series lithium battery pack delivers the energy density required for approximately 2 hours of active demonstration. The quick-release battery mechanism enables a battery swap in seconds rather than minutes — carrying a spare unit makes back-to-back event sessions practical without recharge downtime. The included 54V 5A charger restores full capacity between sessions. Thermal management across the PMSM actuators uses local air cooling throughout the entire operating cycle.

What's in the box

• 1 × Unitree G1 AIR humanoid robot (fully assembled)
• 1 × 9000 mAh smart battery with quick-release mechanism
• 1 × 54V 5A charger
• 1 × handheld remote controller

Why choose EXPERT3D?

EXPERT3D has been Valencia's specialist for advanced robotics and 3D technology since 2012, advising industrial clients, universities, research centres, and event professionals across Spain and the EU. Our technical team has direct, hands-on experience with humanoid robot platforms and can guide your organisation through every stage — from pre-purchase consultation and live demonstration to on-site setup and ongoing support. Every Unitree G1 AIR sold through EXPERT3D includes a 2-year warranty, priority technical assistance in Spanish and English, and access to our network of authorised service partners. Contact us to arrange a live demo or request a personalised quote.