Can Google Find My Device Track a Phone That’s Turned Off?

How Google Find My Device Works: Technical Basics

1. Active Internet Connection
   1. The device must be connected to Wi-Fi or mobile data to transmit location information.
   2. Without an internet connection, real-time communication with Google’s servers is impossible.
2. Enabled Location Services
   1. GPS, Wi-Fi scanning, and mobile networks determine the phone’s coordinates.
   2. If location access is disabled, tracking accuracy will significantly decrease.
3. Linked Google Account
   1. The device must be signed in to your Google account with “Find My Device” enabled. When these conditions are met, the tool provides real-time location updates, remote locking, and data erasure options.

Why a Turned-Off Phone Can’t Be Tracked

• No Power = No Connectivity: The phone’s cellular, Wi-Fi, and Bluetooth modules deactivate, severing communication with Google’s servers.
• GPS Requires Power: Without power, the phone can’t receive or transmit satellite signals.
• Battery Removal: If the battery is removed (common in older devices), all tracking capabilities cease immediately. Even a “soft” shutdown (e.g., holding the power button) halts most functions, though some modern phones may retain minimal background processes in low-power states.

Exceptions and Partial Workarounds

1. Last Known Location
   1. Google saves the last known location of the phone before it powered off. You can access this through Find My Device or Google Maps Timeline.
   2. How to Use It:
      • Log in to your Google account on a browser.
      • Visit “Find My Device.”
      • Check the timestamped location and map coordinates.
2. Offline Tracking Network (Android Only)
   1. Select Android devices (e.g., Google Pixel 8+, Samsung Galaxy S23+) use Google’s “Find My Device” network, a crowdsourced system that uses nearby Android devices to anonymously relay your phone’s location, even if it’s offline.
   2. How It Works:
      • If your lost phone is near another Android device with an internet connection, its Bluetooth beacon can be detected and reported to Google.
      • Enable this feature under Settings > Security & Privacy > Find My Device > Enable Offline Mode.
3. Low Power Mode
   1. If the phone is in Low Power Mode (not fully off), background processes like location pings may continue for a short time.
4. Third-Party Tracking Tags
           To prevent your phone from becoming untraceable after the battery dies, consider attaching a Finder Card directly to it. A simple and practical method is to place the card between your phone and a soft case—such as a silicone phone case—which typically has enough space to hold it securely.
           Ultra-thin tracker cards like the Seinxon InCard, at just 1.7mm thick, are ideal for this purpose. Compared to bulkier alternatives like Tile, Chipolo, or Samsung SmartTag, these slim cards fit more comfortably in phone cases without adding noticeable bulk or interfering with daily use.
     These devices:
   1. Emit signals detectable via companion apps.
   2. Work even if your phone is off (as long as the tag has power).

Comparing Android and iPhone Offline Tracking

• How iPhones Do It:
  • iPhones (iOS 15+) emit Bluetooth signals even when powered off, and nearby Apple devices can detect these signals.
  • This leverages Apple’s vast network of devices to crowdsource location data.
• Android’s Progress:
  • Google’s “Find My Device” network is newer and has a more limited coverage, but it’s expanding.
  • Currently, compatibility is limited to newer devices.