The old cable driven system did not provide the torque and angular rotation needed for sufficient walking assistance and rehabilitation. This design also included many loose cables and wires that posed safety risks and added a bulky appearance to the exo.

The new direct drive system improves power and safety while maintaining a low weight and low profile for a much better experience for the user. All of the belt drive components are contained in the compact enclosure, which increases safety, reliability, and aesthetics.