AirTag and SmartTag: How to Detect If a Bluetooth Tracker Is Following You
Phones can now warn users when an unknown Bluetooth tracker such as an Apple AirTag or Samsung SmartTag is moving alongside them for an extended period. The alerts do not automatically confirm stalking, since the same tags can be left in taxis, rental cars or borrowed bags, yet they should never be ignored.
AirTag and SmartTag are small Bluetooth devices roughly the size of a large coin. Owners attach them to keys, bags, luggage, bicycles or pet collars so the items can be located on a map through the phone app. The tags themselves contain no GPS chip, SIM card or microphone; they simply broadcast a short Bluetooth signal that nearby phones anonymously forward to the owner.
Apple’s network is called Find My and draws on millions of iPhones, while Samsung uses SmartThings Find and Galaxy devices. Google operates a similar Android Find Hub network. The more phones nearby, the more accurate and frequent the location updates become.
What the notification actually means
An iPhone running iOS 17.5 or later may display a message that an AirTag or compatible tracker is traveling with the user. Android devices show a comparable alert about an unknown tracker that has been moving together with the phone owner. The warning triggers only when the tag is separated from its registered owner and stays near the user for a prolonged time.
Users should become concerned if the same unknown tag appears repeatedly, follows them after meetings or trips, or triggers alerts near home or in locations where strangers should not have access.
Immediate steps after receiving an alert
- Take screenshots of the notification, map and timestamps before dismissing anything.
- Do not turn off Bluetooth, as it is required to locate the device.
- Move to a public area, contact a trusted person or call emergency services if the situation feels threatening.
- Search bags, clothing, strollers and recently received items.
How to locate the tracker
On iPhone, open the alert card to view the route, play a sound on the tag or scan nearby. The serial number can be read via NFC by bringing the tag close to the phone. On Android 6.0 and newer, search settings for “unknown trackers” or use the open-source AirGuard app for additional scanning of Apple and Find My networks.
Start the physical search with items that stay close to the body: bags, coats, wallets, laptop cases and car interiors including door pockets, under seats and floor mats. Never attempt to disassemble wiring or crawl under a vehicle; instead contact police or a service center.
Evidence and police involvement
Photograph the tag in place, preserve all notifications and route data, and record the serial number if displayed. Do not discard or hand the device to a suspected owner. File a police report when a tag is found inside personal property without explanation or when accompanied by threats or stalking behavior. In life-threatening situations call 112.
Reducing future risk
- Keep iOS, Android, Google services and SmartThings updated.
- Review location-sharing permissions in Find My, Google Maps and messaging apps.
- Remove unknown devices from Apple ID, Google and Samsung accounts.
- Enable two-factor authentication and change passwords after relationship changes or device loss.
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