Many smartwatches, fitness and wellness trackers now offer sleep tracking among their many functions. Subscribe to our newsletter for the latest sci-tech news updates. Wear your watch or ring to bed, ...

Putting on a fitness tracker feels like flipping the switch on a healthier, more active life. With every second of a workout tracked, every beat of your heart measured, and every toss and turn counted ...

Wearable sleep tech, like smart watches or rings that take real-time health metrics, have made it super easy for the average snoozer to track their sleep from one night to the next. But is all that ...

You don’t need to be absent-minded to lose track of something. Car keys get knocked under tables, wallets slip between couch cushions, and luggage gets sent on exotic vacations by airlines ...

The improved second-generation versions of Apple's ubiquitous trackers expand their range and add other features. Here's how they've changed and how they work.