[citation needed] The KHR-3's physical specifications, such as height, weight, and the number of DOFs (degrees of freedom), were similar to Honda's ASIMO, which served as the benchmark for the project.

In terms of AI and movements, HUBO fell short of the "next-gen ASIMO," which was unveiled three months later.

KAIST researchers noted, however, that HUBO could play kai-bai-bo (the Korean version of rock paper scissors), which was impossible for ASIMO since its fingers could not move independently of each other.

[1][2] The walking frame was based on the KHR-3 HUBO, while the head was an exact recreation of the late physicist, Albert Einstein.

The complete humanoid robot was given a slimmer design with an aluminum endoskeleton and a polycarbonate frame, resulting in a slightly taller height but a 20% lighter weight than its predecessors.

[citation needed] A HUBO entered by TEAM KAIST was the winner of the DARPA Robotics Challenge finals on June 6, 2015.