Battery life varies from several days to multiple weeks, with rechargeable lithium-ion or lithium-polymer cells common in modern units. Some trackers support replaceable batteries or USB-C charging, and a few models integrate directly into suitcase shells or removable tags. Accuracy is typically within a few meters when GPS signals are available, and indoor or urban canyon performance depends on Wi-Fi and cellular triangulation.
Leading Brands, Models, and Airline Policies
Apple AirTag, Samsung SmartTag Plus, and Tile Pro are among the most widely used Bluetooth-based options, while GPS-specific devices from brands like Invoxia, Garmin, and Tractive offer cellular tracking. Apple states that AirTag is designed to help users locate personal items, and Samsung positions SmartTag Plus as a companion for Galaxy devices. For details on Apple's positioning, see the Apple product page Apple.
Airlines such as Delta, United, and American Airlines have updated lost-luggage guidance to reference personal tracking devices, though none endorse specific brands. The International Air Transport Association notes that airlines remain responsible for mishandled bags under the Montreal Convention, and passengers are advised to keep tracking devices removable and compliant with lithium battery rules. For regulatory context, see the IATA page.
Regulations, Privacy, and Network Considerations
Regulators in the United States and Europe have set rules for tracking devices that use cellular networks, requiring compliance with radio spectrum allocations and data privacy standards. The U.S. Federal Communications Commission oversees device emissions and carrier usage, while the European Union enforces privacy rules under GDPR that affect how location data is stored and shared. For FCC details, see the FCC site.
Privacy features vary by brand, with some devices requiring explicit consent from nearby phones for crowd-sourced location updates and others offering end-to-end encryption for location data. Apple introduced safety alerts to notify people if an AirTag is moving with them without their consent, and Samsung added similar protections for SmartTag devices. For information on Samsung's approach, see the Samsung newsroom Samsung Newsroom.