Android Device Manager lets you remotely wipe your device using another smartphone

Google has just updated the Android Device Manager app to locate, ring, lock, and erase data on your lost device from another person’s Android device or a PC. This handy new feature will make it easier to protect your data if ever your phone gets stolen. You just need to tap on the drop-down menu at the top of the app and select Guest user. If you don’t have this feature yet, the update should be coming to your device soon.

Source: Android Police