Hello Otto, thanks for asking! The Find My Mobile feature allows you to lock or unlock, locate, or if worst comes to worst, completely wipe your data. You can quickly view incoming messages and send replies without even taking out your phone. You can also send replies using Quick messages, or when you decline incoming calls. With this watch you can make and answer calls right from your wrist! You just need to make sure the watch is connected to your phone through Bluetooth or through a mobile network. With a LTE watch model like the Galaxy Watch Active2, you can even handle calls remotely. ^Elizabeth