Every phone provider has a log of the IMEI binding to cell tower and triangulation over multiple towers. Call logs are one thing, carrier cell connect and disconnect is another.
If your phone is on, your position in time and space to some circular error is also known, continuously.
To say nothing of Bluetooth that's with the advertising hoardings and inside the store mainly.
Basically, any privacy nut with a phone and simcard is in denial.
Huh?