A new wearable electronic "tattoo" allows accurate, uninterrupted heart monitoring for days, researchers say.

With some changes, a standard smartwatch can figure out when a wearer was typing on a keyboard, washing dishes, patting a dog, and more.

A new supercapacitor shows solid performance and stability—even when researchers stretch it to 800 percent of its original size.

A Fitbit-like device for kids could spot motor deficits before they turn into significant and irreversible disabilities, researchers say.

Polymers could be designed to reflect or trap heat, regardless of hue.

Combining laser-induced graphene with a range of other materials gives it all sorts of new tricks.

How hard your foot hits the pavement isn't the only factor that can lead to stress fractures. Wearable sensors don't account for the true cause.

Tech that tracks your movements could let you control video game avatars with your clothes. It could even replace other wearables like FitBit.