Mobile hotspots on smartphones use the phone's data connection to create an internet link or Wi-Fi connection that your other devices (and your friends or family) can share.

Wi-Fi can easily serve as a backup for your cellular network for calling and texting, especially if you find yourself without signal.

Apple may never put iMessage on Android, but that doesn't mean it's impossible. Here's how you can chat away on iMessage on an Android phone right now.