"What's AirDrop?!" You'd be surprised at how many times we've heard that from iOS-loving friends. Considering how genius it is, we're putting it in the category of most underrated iPhone features (along with the Control Center, of course). Quite simply, it's the easiest way to share photos, videos, contacts, music, and more with other iOS devices.
Here's a cheat sheet for using AirDrop on the iPhone, but note that you can use it on any device with iOS 7 and up. There's also an AirDrop for Mac, but you can't share between iOS and OS X devices. Now that that's out of the way, let's get to it!