Connection clarification
I have the iPhone 7 Plus. Would like some clarification on connections. At home I have the "WiFi" on and the "Cellular Data" off. Should they both be "on" and hopefully the system will use the "WiFi" over the cellular? Or do I turn the "Cellular Data" on when exiting the house and turn off "WiFi". I know I can leave both on but I am more concerned about not using public "WiFi". What, in your opinion, is the best set up? All comments are welcome.
iPhone 7 Plus