Why this made the list
A Bluetooth tracker is only as useful as the network of devices that can spot it when it's out of your own Bluetooth range, and Apple's Find My network is the largest one that exists by a wide margin, since the app is already built into essentially every iPhone, iPad, and Mac in use. That scale is the actual reason to pick an AirTag over a competitor, not the tracker hardware itself.
What it actually does
Each AirTag runs on a replaceable CR2032 coin battery rated for roughly a year of use, swap it yourself when it runs low rather than replacing the whole tracker. It connects to Apple's Find My network, which relies on nearby Apple devices anonymously relaying a lost item's location back to its owner, a network with a massive head start simply because of how many Apple devices already exist. Newer iPhones also support Precision Finding, which gives direction and distance to a nearby AirTag rather than just a rough area on a map. Apple has also built in anti-stalking protections: an AirTag traveling with someone who isn't its owner will eventually trigger an alert on their iPhone, and a separated AirTag will play a sound after a period of time.
Who this is actually for
Anyone already living in the Apple ecosystem, an iPhone owner attaching one to keys, a bag, or checked luggage who wants the best odds of it being found if it's ever truly lost, not just misplaced around the house. The size of the Find My network is the deciding factor here, especially in well-populated areas where more Apple devices are around to spot a lost item.
What to weigh before buying
- AirTags are built around iOS. Precision Finding and full functionality require an iPhone, Android users get much more limited support.
- The Find My network's usefulness depends on Apple device density nearby, in remote or low-population areas, a lost item is less likely to be spotted regardless of network size.
- The battery is replaceable, which is good for the long run, but it does mean an occasional small maintenance task rather than a truly set-it-and-forget-it tracker.
The verdict
For an iPhone owner, the AirTag's real advantage isn't the hardware, it's the sheer size of the network finding it. That's a genuine, material edge over Tile, especially anywhere with decent iPhone density, though Android users won't get the same benefit and should look elsewhere.