(1) See
smart tags.
(2) The vehicle toll collection system in Malaysia.
(3) Samsung's Bluetooth trackers introduced in 2021. SmartTags use Samsung's SmartThings Find app built into Galaxy phones. There are two SmartTag versions. One for Bluetooth Low Energy (BLE), which all Galaxy phones support, and SmartTag+ for Ultra-Wideband (UWB) on newer phones. SmartTag+ can pinpoint a tag's location within inches. See
Bluetooth tracker and
SmartThings.
Lost in the Grass?
Trackers such as Samsung's SmartTags can find things in places where people might not think to look. (Image courtesy of SAMSUNG.)