Apple revamped its essential trackers that let you make sure your stuff doesn't go missing. Here's how to make them work best for you.

Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness watches and smart rings. When you purchase through links on our site, we may earn ...

AirTags and other Bluetooth trackers can be a lifesaver when you've accidentally lost your keys, purse, or even your luggage. Although they're commonly called Bluetooth trackers, AirTags and other ...

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 ...