If you are using Android, there are several options. Some devices such as Samsung have such a function built in. In order to use it, however, you have to create an account with Samsung. If you activate the function, you can locate your smartphone via the website https://findmymobile.samsung.com/ from another device, provided you log in there. Another option is the Find My Device app, which you can find in the Google Play Store. The app works exactly like the one from Samsung, but you need a Google Plus account. If you just misplaced your smartphone, you can let it ring. This also works when the smartphone is set to quiet. Simply open https://myaccount.google.com/intro/find-your-phone, log in and you will see where your smartphone is. Here you can also change the password of your smartphone.
However, under Android, please note that you can only locate your device if the location services are activated and you are connected to the Internet. A clever thief knows how to disable the function and in this case you will not be able to find him or your smartphone.
If you are using an iPhone, you will need to download the Find My iPhone app. Once installed, you can find your device on a map by going to https://www.icloud.com/#find and logging into your iCloud.
There you can also mark your smartphone as lost and it will be blocked. You can still send a message to the locked screen about this. If you’ve just lost your smartphone, you can write something like this: “Lost smartphone. Please call 212-555-1234 to return it ”. If you are sure that your smartphone has been stolen, then maybe write something like “You are stupid”.
That is the radical option. If you do not get your smartphone back, you can delete all data on your smartphone with the Find My Device / Find My iPhone apps. Even if the thief cracks your password, he will not be able to access your personal data.
Note, however, that this will also delete all personal accounts. You can no longer track where your smartphone is afterwards.
However, your smartphone could still use the services of your mobile network provider. Whoever has it could call with your number, use your data package and so on. To stop this, call the mobile operator and report your smartphone as stolen.
Because you might have to erase your phone’s data one fine day, think about backing up your phone’s contents (you should be doing that anyway, to be honest). H