A new powered ankle exoskeleton called the Dephy Sidekick debuted at CES 2026 in Las Vegas to assist users with walking [1], [2].

The device represents a shift in wearable robotics by targeting specific muscle off-loading. By reducing the physical strain on the calves, the technology could potentially expand mobility for those with muscle fatigue or physical limitations.

The Dephy Sidekick is priced at $4,500 [1]. It functions as a robotic mobility assistant that lifts the wearer's heels with every step [1], [2]. This mechanism is designed to act as an additional calf muscle, providing a powered boost to the natural walking motion.

One journalist who tested the device described it as being similar to an e-bike, but for walking [2]. The user said the device provided a "superhuman" walking experience by alleviating the effort typically required by the lower legs [1], [2].

"Created by Dephy (pronounced "defy"), the Sidekick lifts your heels with every step, making it easier to walk," the journalist said [1].

The testing took place during the CES 2026 event in Nevada [1]. The journalist said they were the first member of the press at the event to try the Sidekick [1]. The device focuses specifically on ankle propulsion, a critical component of human gait that often leads to fatigue during long periods of activity [1], [2].

“The Sidekick robotic mobility assistant is sort of like an e-bike, but for walking.”

The introduction of the Dephy Sidekick highlights a growing trend in 'augmentation' technology, where robotics move beyond medical rehabilitation into the realm of general human performance enhancement. By off-loading specific muscle groups, these devices may eventually transition from high-cost niche gadgets to standard tools for laborers, elderly populations, or those with chronic mobility issues.