Chinese firm unveils ‘guardian’ robot that can disarm attackers, lift cars

A knife-wielding intruder is confronted. A car is lifted to free a trapped victim. A pedestrian is pulled from the path of an oncoming vehicle. The scenes described are not from a Hollywood blockbuster, but a promotional clip for a new “guardian” robot created by the Chinese technology firm Unitree Robotics. The footage for the H2-X model, released on Wednesday, underscores a wider shift in strategy by the Hangzhou-based firm, as it focuses on finding practical, real-world uses for its athletic...