Modern Bluetooth devices, including all smart phones running Windows, iOS or Android, does not use static addresses that can be used as a signature to track you

Modern Bluetooth devices, including all smart phones running Windows, iOS or Android, does not use static addresses that can be used as a signature to track you. Instead, they use private resolvable keys for all handshakes with devices around them. A new key is generated every few minutes, and only a device which you have previously bonded with is able to resolve your key through data exchanged in the bonding process.