MIT's new device uses light to measure blood sugar levels without any needles, and a wearable version is already in the works ...

Engineers at Rice University have developed a dual-bacterial system that converts chemical signals directly into electrical ...

Every smart smoke alarm I’ve tested has one potentially fatal flaw, trading fewer nuisance alarms for a risky sensor strategy ...

As a certified personal trainer, I tested 16 wearables while training, running and swimming. Here are the best fitness ...

With heart rate monitors now standard in smartwatches and fitness trackers, electrocardiograms (ECG/EKG) have rapidly become a common feature in health wearables. The technology aims to assist ...

From cycle tracking to better sleep insights, the Oura Ring 4 is packed with features designed to support overall health. But ...

The check engine light is the worst kind of message. It tells you something is wrong without telling you what, and the dealership will happily charge a ...