How to Set Up and Use Unknown Tracker Alerts on Android to Detect Unwanted Bluetooth Trackers

Compact Bluetooth tracking accessories—such as Apple AirTags, Samsung SmartTags, and Chipolo trackers—are convenient tools for keeping tabs on keys, luggage, and backpacks. However, malicious actors can also misuse these devices to track individuals without their knowledge or consent. To protect personal safety and privacy, Google built native Unknown Tracker Alerts directly into Android. This system constantly monitors your surroundings, alerts you if an unfamiliar tracker is travelling with you, and gives you tools to locate and disable it.

How Unknown Tracker Detection Works

Developed in collaboration with Apple under a unified industry tracking specification, Unknown Tracker Alerts operates automatically in the background on devices running Android 6.0 (Marshmallow) and later with Google Play Services:

• Separation Detection: An alert is only triggered when a Bluetooth tracker is separated from its owner’s paired device and moves along the same route as your Android phone over a period of time.
• Passive Background Scanning: Bluetooth Low Energy (BLE) scanning runs periodically without draining your battery or uploading your location to cloud servers.
• Universal Device Support: Detects Apple AirTags as well as third-party trackers compatible with Google’s Find My Device network.

Feature	Automatic Tracking Alerts	Manual On-Demand Scan
Trigger Method	Automatic notification when moving along your route	User initiates scan manually in Settings
Duration Required	Monitors travel over multiple location updates	Completes instant local scan in ~10 seconds
Map Route History	Yes — displays a visual route map where detected	No — indicates physical proximity only
Audible Sound Ringing	Supported on compatible trackers	Supported on compatible trackers

Step 1: Enabling Automatic Unknown Tracker Alerts

While the feature is enabled by default on modern Android builds, ensure your settings and permissions are configured correctly:

1. Open the Settings app on your Android device.
2. Scroll down and tap Safety & emergency (or tap Google > All Services > Safety & emergency depending on your manufacturer’s interface).
3. Select Unknown tracker alerts.
4. Verify that the Allow alerts toggle is switched On.
5. Ensure Location and Bluetooth are active on your device. Android requires location access to construct the route map and Bluetooth to scan for beacon signals.

Step 2: Responding to a Tracker Notification

If an unknown tracker travels with you, Android posts a high-priority notification: “Tracker travelling with you”.

1. Tap the notification to open the tracker overview screen.
2. Review the Tracking Map:
   • Android displays a red-dotted route line showing where the tracker was first observed alongside your journey and where it was last detected.
   • This helps determine whether a friend accidentally left keys in your car or if an unfamiliar item was intentionally concealed in your belongings.
3. Tap Play sound:
   • Your phone commands the tracker to emit an audible chime without notifying the tracker’s owner.
   • Follow the sound to locate where the tracker is hidden (e.g., inside a coat lining, bag pocket, or vehicle bumper).

Step 3: Identifying the Owner and Disabling the Tracker

Once you locate the physical tracking accessory, obtain its identifying metadata and neutralise its transmission:

1. Hold the back of your Android phone against the tracker near your device’s NFC sensor (typically near the top centre of the rear panel).
2. A web prompt will open displaying the tracker’s serial number and the last four digits of the owner’s registered phone number. Take a screenshot for legal documentation if necessary.
3. Follow the on-screen instructions to disable the device:
   • Apple AirTag: Push down firmly on the stainless steel battery cover, rotate counter-clockwise, and remove the CR2032 coin battery.
   • Chipolo / SmartTag: Pry open the outer plastic casing using the side notch and detach the coin battery.
4. Once the battery is removed, the tracker immediately stops broadcasting its location to the owner.

Step 4: Running a Manual On-Demand Scan Anytime

If you suspect an unwanted tracker is nearby—such as when purchasing a used vehicle, renting an apartment, or boarding public transport—you can initiate a manual scan immediately without waiting for an automated route alert:

1. Navigate to Settings > Safety & emergency > Unknown tracker alerts.
2. Tap the Scan now button under “Manual scan”.
3. Keep your phone still for approximately 10 to 15 seconds while Android sweeps nearby BLE frequencies.
4. If a separated tracker is detected nearby, it will be listed with an option to ring it directly.

Troubleshooting and Best Practices

• “Can’t play sound” Error: If tapping “Play sound” fails, the tracker may have moved out of immediate Bluetooth range (approximately 10 metres), or the owner may have recently reconnected to it, which disables third-party ringing.
• False Positives from Friends or Family: If you are travelling in a car with a friend or colleague who has an AirTag on their personal keys, Android may alert you if their phone battery dies or if their device loses connection. You can dismiss the notification safely.
• Keep Google Play Services Updated: New tracker hardware manufacturers are periodically added to the detection database. Ensure your device receives Google Play system updates via Settings > Security & privacy > System & updates > Google Play system update.