Google has quietly added its “find my phone” service to the Google app on Android, home to Google Now’s predictive engine. You literally search for a misplaced phone or tablet to find where it's ended up.

In order for all this to work, you’ll need to have logged into your wandering Android device using your Google account—and installed the Google app. If you do this, then lose track of the phone or tablet, you'll be able to go to Google.com on any browser, log in and type in the words “find my phone.” Up pops a Google Maps...