Abstract
The advancement of ubiquitous and wearable computing hastransformed how humans interact with their environments,bodies, and technologies. This evolution has enabled thedevelopment of devices that integrate seamlessly into every-day life, offering continuous, context-aware support for health,perception, and interaction. This research introduces the con-cept of electronic symbionts, wearable devices that interactwith the human body without relying on independent powersupplies or interfaces. Instead, they draw energy and func-tionality from the host, enabling non-invasive physiologicalmonitoring and bodily awareness. The project reported in thispaper leverages printed electronics to develop flexible, biode-gradable, and energy-efficient systems that blend with humanskin and movement. Through a transdisciplinary collaborationbetween design and engineering, the Sustainable WearableSymbionts (SWS) become a new generation of devices thatpromote environmentally responsible innovation in personalhealth technologies.