Apple AirTags are small, coin-shaped tracking devices that use Bluetooth technology to help you locate items you attach them to. Each AirTag measures about 1.26 inches in diameter and weighs just 0.39 ounces, making them light enough to slip into a wallet, attach to a keychain, or place inside a bag. When you set up an AirTag, it connects to your Apple ID and becomes part of Apple's Find My network, which includes hundreds of millions of Apple devices worldwide.
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The Find My network works by detecting the Bluetooth signal from your AirTag. If your tagged item is nearby, your iPhone or iPad will display its location on a map. If the item is farther away, other Apple devices in the Find My network that detect your AirTag's signal can relay its location back to you—all while protecting your privacy. Apple designed this system so that location data remains encrypted and anonymous. The company does not see your item's location, and other users cannot identify whose AirTag they've detected.
Each AirTag has a unique identifier that rotates regularly for privacy protection. When multiple Apple devices detect an AirTag, they work together to triangulate its location. This crowdsourced approach means that even if you're not near your item, the Find My network may help pinpoint its location based on detections from other users' devices in the area.
An AirTag runs on a standard CR2032 coin cell battery, which lasts about one year under normal use. When the battery gets low, your iPhone will notify you, and you can replace it yourself. Unlike some tracking devices, AirTags do not require a monthly subscription fee or recurring charges. Once you set one up, it functions indefinitely as long as you maintain an active Apple ID and replace the battery when needed.
Practical Takeaway: AirTags are affordable tracking devices that work through Bluetooth and a crowdsourced network. Understanding their basic technology helps you determine whether they meet your tracking needs and what their limitations might be in your situation.
Setting up an AirTag takes just a few minutes and requires an Apple device running iOS 14.3 or later, iPadOS 14.3 or later, or watchOS 7.3 or later. You'll also need an Apple ID and to be signed into that account on your device. The setup process begins when you open the Find My app on your iPhone or iPad. Tap the "Items" tab at the bottom of the screen, then tap the plus sign in the upper right corner to start adding a new item.
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Hold your new AirTag close to your Apple device. Within a few seconds, your device should detect it and display a setup screen. If automatic detection doesn't occur, you can manually add the AirTag by selecting "Add Item Manually" and entering the AirTag's eight-digit setup code, which you'll find on the back of the device and on the packaging. Once your device detects or recognizes your AirTag, you'll see a confirmation screen with the AirTag animation.
Next, you'll name your AirTag. Choose something descriptive that clearly identifies what you're tracking, such as "House Keys," "Blue Backpack," or "Luggage." This name appears in your Find My app and helps you quickly locate the right item. After naming it, you have the option to assign an emoji icon to your AirTag. This visual identifier makes it even easier to distinguish your tracked items at a glance, especially if you have multiple AirTags.
The setup wizard will then ask if you want to use the AirTag with Siri. Enabling this feature allows you to say "Hey Siri, find my keys" and have Siri locate your tagged item for you. This hands-free functionality can be convenient, though it requires that Siri is enabled on your device. After completing these steps, your AirTag is ready to use. It should appear in your Find My app's Items tab with a map showing its current location.
Practical Takeaway: The AirTag setup process is straightforward and takes minutes. Giving your AirTag a clear, descriptive name makes it easier to manage multiple devices and find the right item when you need it.
The Find My app contains several features that help you track and locate your AirTags. The main "Items" tab shows all your AirTags in a list view. Each entry displays the item's name, assigned emoji, and current distance from your device. For items nearby, the app shows "Nearby" with a distance estimate. For items farther away, it displays "Not Nearby" along with the last known location.
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Tapping on any AirTag opens a detailed view with a map showing where your item currently is or was last detected. If the item is within Bluetooth range, the map pinpoints its exact location. You can also use the "Find" button, which plays a sound from the AirTag so you can locate it by listening. This audio alert is particularly useful when searching for keys or other small items in your home. The speaker produces a distinctive tone that's easy to hear but not startlingly loud.
For items you've lost or think may be lost, the Find My app offers "Lost Mode." When you enable Lost Mode for an AirTag, you can add a phone number or email address that will display on any Apple device that detects your AirTag. If someone finds your item and their device detects your AirTag, they'll see your contact information, allowing them to reach out to you. Lost Mode also keeps your AirTag sending location data to the Find My network continuously, increasing the chances you'll receive location updates.
The app also allows you to set up notifications. You can receive alerts when you leave a certain location or arrive at a specific place without your AirTag, which is useful if you frequently forget items at home or in your car. For example, you might set a notification to alert you if you leave your house without your wallet. This feature works by monitoring the distance between your iPhone and your AirTag based on Bluetooth range and Find My network signals.
Practical Takeaway: The Find My app offers multiple tools for tracking your AirTags, from playing sounds to locate nearby items to enabling Lost Mode for items you can't find. Learning to use these features increases your chances of recovering lost or misplaced items.
Several tracking technologies compete with AirTags in the market, each with different strengths and limitations. Tile trackers, for example, operate similarly to AirTags by using Bluetooth and a crowdsourced network. Tile devices are often less expensive than AirTags, with some models costing $15 to $25. However, Tile's network is smaller than Apple's Find My network, particularly in less populated areas. AirTags benefit from over a billion Apple devices that can detect them, whereas Tile relies on a more limited user base.
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GPS-based trackers offer a different approach. Devices like AirPods Pro and Apple Watch Series 7 and later include built-in GPS, which provides real-time location tracking without relying on a crowdsourced network. However, GPS trackers consume significantly more battery power than Bluetooth trackers, requiring more frequent charging. GPS devices also work best for tracking larger items like cars or outdoor equipment. For tracking everyday items like keys and wallets, Bluetooth trackers like AirTags are more practical.
Smartphone-based solutions, such as phone tracking apps, offer another option. These programs allow family members to share their device locations with each other. However, they track phones, not individual items, and require the person carrying the device to keep the app running and their phone charged. They don't solve the problem of tracking lost or misplaced items.
AirTags occupy a middle ground—they're affordable, reliable, and work well for tracking personal items in everyday situations. Their main limitation is that they rely on Bluetooth range or being detected by another Apple device. If your AirTag is in an isolated area with few Apple devices nearby, it may not provide location updates. For this reason, some people use multiple tracking solutions depending on what they're tracking and where they'll be using the tracker.
Practical Takeaway: Different tracking devices serve different purposes. AirTags work well for everyday
This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.