Apple AirTag is a UWB (ultra-wideband) tracking device released by Apple on April 20, 2021. It can attach to portable objects such as keys, backpacks, remotes, or other objects you want to track their location.
AirTag devices are compatible with recent models of the Apple iPhone, iPad, and Apple Watch, which are used to remotely track one or more AirTags using the Find My app.
Apple, Apple terms
