Find My iPhone, a feature available in Apple’s Find My app, will help you locate your lost phone. You can find it using any other Apple device you own or by borrowing a friend’s device. You can even ping your iPhone from your Apple Watch.
From Find My, you can also remotely lock down your lost iPhone, put the device into a special Lost Mode, or even wipe its contents. You should take a peek at this incredibly useful app before you have to.
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