Create a new Apple ID and keeping the data of the old one
I recently got a new iPhone, but I want to keep my old iPhone as a backup. I want to keep the data like the notes contacts photos all in the old one as well while i change the email to that one. Ultimate I want to have the data of my old Apple ID with a new apple id on the old device and my old Apple ID transfered to my new device
iPhone 13 Pro Max, iOS 18