The SIM card alert is the specific function so you will know the phone number of the person who stole your phone. The function works as follows: if the thief takes the device’s original SIM card out and puts another SIM card inside the device, the Anti-Theft function will recognize that the original SIM card has been tampered with.
With this recognition, you will receive an e-mail, stating that the device’s SIM Card was changed. From there, you have the phone number of the person who stole your device which you can share with the police.
* Note: To enable this feature, you must register an e-mail.