Android users
Google recently updated its Android operating system to add a new feature called Android Device Manager, which helps Android smartphone owners find their lost or stolen smartphones and tablets. Android Device Manager is activated through the Google Settings app. The locator feature is enabled by default, and there is also an opt-in feature to allow you to remotely lock your device or erase the data.
To use the locator feature, visit Android Device Manager online and log in with your Google account. You will get a prompt asking for permission to allow Android Device Manager to use location data. Click on the "Accept" button to continue.
There are three options under Android Device Manager: 1) you can locate your phone on a map, along with the place it was last used; 2) you can choose to ring your device; and 3) you can force a factory rest, which will erase all your data, including apps, photos, music and settings. Once your device has been wiped, you will no longer be able to access it through Android Device Manager, so this is truly a last resort.