The Apple Watch can not only help you find a lost or stolen iPhone, but also track the missing device if it's hidden nearby.

Whether it’s misplacing your phone in the house or on a park bench, the Find My app—previously called Find My iPhone—is a reliable way to track it. It lets you track your AirPods, too.

Find My network is an encrypted and anonymous network of Apple devices that help locate your device. Like location sharing, this setting is optional and not required for locating the device.

Now there’s an iPhone app (for installing on iPhones other than your own, obviously). ‘Find My iPhone’ Lets You Ping, Remotely Erase Your Lost Phone (If You Have MobileMe) ...