You can locate your items with the new Samsung Galaxy SmartTag and SmartTag+. These trackers can be connected to the SmartThings app and tracked through GPS.
Galaxy SmartTag 2 is official with new features and major redesign - SamMobile
Samsung launches the Galaxy SmartTag+ — super-accurate item tracker - PhoneArena
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How to use Samsung Galaxy SmartTag
Samsung Galaxy SmartTag+ with BLE & UWB technology hits the global market - Gizmochina
Samsung Galaxy SmartTag+ to accompany the regular SmartTag: Report - Gizmochina