AirTag is a tracking device developed by Apple. AirTag is designed to act as a key finder, helping people find personal objects (e.g. keys, bags, apparel, small electronic devices, vehicles). To locate lost items, AirTags leverage Apple’s crowdsourced Find My network, estimated in early 2021 to consist of approximately one billion devices worldwide that detect and anonymously report emitted Bluetooth signals. AirTags are compatible with any iPhone, iPad, or iPod Touch device capable of running iOS/iPadOS 14.5 or later. Using the built-in U1 chip on iPhone 11 or later (excluding iPhone SE 2nd generation), users can more precisely locate items using UWB (ultra-wideband) technology. AirTag was announced on April 20, 2021, made available for pre-order on April 23, and released on April 30.
AirTags can be interacted with using the Find My app. Users may trigger the AirTag to play a sound from the app. iPhones equipped with the U1 chip can use “Precision Tracking” to provide direction to and precise distance from an AirTag. Precision Tracking utilizes ultra-wideband.
AirTags are not satellite navigation devices. AirTags are located on a map within the Find My app by utilizing Bluetooth signals from other anonymous iOS and iPadOS devices out in the world. To help prevent unwanted tracking, an iOS/iPadOS device will alert their owner if someone else’s AirTag seems to be with them, instead of with the AirTag’s owner, for too long. If an AirTag is out of range of any Apple device for more than 8 to 24 hours, it will begin to beep to alert a person that an AirTag may have been placed in their possessions.
Users can mark an AirTag as lost and provide a phone number and a message. Any iPhone user can see this phone number and message with the “identify lost item” feature within the Find My app which utilizes near-field communication (NFC) technology. Additionally, Android and Windows 10 Mobile phones with NFC can identify an AirTag with a tap, which will redirect to a website containing the message and phone number.
AirTag requires an Apple ID and iOS or iPadOS 14.5 or later.It uses the CR2032 button cell replaceable with one year of battery life. The maximum range of Bluetooth tracking is estimated to be around 100 meters. The water-resistance of an AirTag is rate