[mothered]

Purchase an old model that does not have the sensors which can be used to track you (Proximity, Magnetometer, Gyroscope, Accelerometer, GPS, Barometer, Biometric, Ambient Light etc), of which most cell phones are shipped with nowadays.

Then take added steps to anonymize your online activity, with secure web browsers, private search engines, VPN and so forth.

Which phone would be best then i have t mobile service as of now which old phone you think be best but has them cool features listed above?
what about this one https://www.ebay.com/itm/SAMSUNG-G600-ST...Swal5YFxlF

I've yet to look Into each phone, namely "each and every feature" so I cannot say for certain which Is the better.

I shall do within the next day or so.