The SAO2 (SA02) is a compact bipedal humanoid robot by EngineAI (Shenzhen EngineAI Robotics Technology Co., Ltd.), a Chinese robotics company founded in October 2023. Standing 1.25 m tall and weighing 25 kg with 28 degrees of freedom, it is marketed as the first humanoid robot for young people, priced at approximately RMB 38,500 ($5,300 USD). Equipped with an on-device large language model, dual HD cameras, and high-fidelity speakers, it is designed for companionship, homework assistance, and interactive entertainment.
Primary use case: Home Assistance
Height
125 cm
Weight
25 kg
DOF
28
Payload
5 kg
Height
125 cm
Weight
25 kg
Degrees of Freedom
28
Locomotion
Bipedal
Max Speed
7.2 km/h
Payload
5 kg
Max Lift/Arm
5 kg
Availability
Pre-order
Primary Use Case
Home Assistance
California's State Athletic Commission sent a cease-and-desist letter to REK (Robot Entertainment Kombat), a San Francisco start-up, for running a 'Human vs Robot' fight event on September 18 without state approval. REK CEO Cix Liv posted the letter on X celebrating it, arguing that a humanoid is not a 'person' under state law and therefore the combat sports statute does not apply.
ARC held Singapore's first full-sized humanoid fight night at *SCAPE on 7 October 2026, with professional Muay Thai, MMA, boxing, and kung fu athletes piloting Unitree G1 and EngineAI T800 humanoids in real time via motion capture. The event introduced a new team format pairing a 35kg Unitree G1 with a 75kg EngineAI T800, and was powered by Katena's real-time pilot-avatar control system. ARC founder Antonio Gai positioned the showcase as a demonstration of human-humanoid partnership rather than a finished sport, with more international ARC events planned.
ARC staged Singapore's first full-sized humanoid fight night at *SCAPE on October 7, 2026, where professional Muay Thai, MMA, boxing, and kung fu fighters in motion capture suits controlled Unitree G1 and EngineAI T800 humanoids in real time before an audience of over 380 people. The event introduced a team format pitting a 35kg Unitree G1 against a 75kg EngineAI T800, with Katena's real-time control system linking pilots to avatars. ARC founder Antonio Gai framed the event as a demonstration of 'partnership, not replacement' for the humanoid era.