Originally, that's what the distinction between the two location permissions on Android was about. ACCESS_COARSE_LOCATION was based on cell ids and wifi network

Originally, that's what the distinction between the two location permissions on Android was about. ACCESS_COARSE_LOCATION was based on cell ids and wifi networks, and ACCESS_FINE_LOCATION used GPS. In modern Android versions I believe this is no longer true as it uses all the sources either way but intentionally degrades accuracy for apps that only have ACCESS_COARSE_LOCATION.