Haptic technology permeates diverse fields and is receiving renewed attention for VR andAR applications. Advances in flexible electronics, facilitate the integration of haptic technologies
into soft wearable systems, however, because of small footprint requirements face challenges of
operational time requiring either large batteries, wired connections or frequent recharge, restricting
the utility of haptic devices to short-duration tasks or low duty cycles, prohibiting continuously
assisting applications. Currently many chronic applications are not investigated because of this
technological gap. Here, we address wireless power and operation challenges with a biosymbiotic
approach enabling continuous operation without user intervention, facilitated by wireless power
transfer, eliminating the need for large batteries, and offering long-term haptic feedback without
adhesive attachment to the body. These capabilities enable haptic feedback for robotic surgery
training and posture correction over weeks of use with neural net computation. The demonstrations
showcase that this device class expands use beyond conventional brick and strap or epidermally
attached devices enabling new fields of use for imperceptible therapeutic and assistive haptic
technologies supporting care and disease management.Release after 05/10/202
