I'm wondering if it is technically possible to track a SIM card inserted in a cell phone with sufficiently charge in the battery.

  • 5
    Is there any research you have done on the topic so far? Mar 14, 2018 at 16:21

2 Answers 2



A SIM card only provides the device with a unique identifier and related information. It does not have any in-built wireless capabilities. In order for a mobile device to be tracked, it needs to be connected (or trying to connect) to a cell tower. Both receiving and transmitting non-negligible amounts of RF requires power to be provided by the battery. If the device is off then so is the transmitter, regardless of whether or not the battery has any remaining charge.


YES!... just make a test using and old Windows Lumia. You can track the phone even if it was formatted or having a different SIM. Just one connection to a WIFi and you can track the device.

Sadly I'm not technical enough to explain how it was working, but did it and I recovered one phone after it was stolen. Please some add this feature to modern devices. It will save lives!!

  • 2
    The OP has in his question that the cell phone is switched off.
    – yeah_well
    Oct 19, 2019 at 6:24

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