Hardware
Machines
The humanoid platforms this sport is fought on. Entire leagues run on standardised hardware — these are the models.

G1
Unitree Robotics · Child size
130 cm · 35.0 kg
The machine that fought the first robot boxing match. 23 degrees of freedom and 90 N·m of knee joint torque — enough for hooks, side kicks and getting back up off the floor, which turned out to be the capability audiences actually came for. REK's San Francisco fights use modified G1s under VR control.

T800
EngineAI · Full size
173 cm · 75.0 kg
The standard platform of URKL and CyberHero. Roughly the size of an adult man, with 29 articulated joints, 450 N·m peak joint torque and four to five hours of battery. Carries 360-degree LiDAR, stereo vision and omnidirectional radar. Reported at about $40,000; URKL supplies them to competing teams rather than selling them in.