Upgraded to one of the latest iPhone recently. First time I clicked on “transfer data from old phone”. I’m used to reinstalling the operating system every couple of months from when I used Windows. It took maybe 15 minutes with close to 0 interactions. Everything was transferred. I was already authenticated in apps. What took manual steps was eSIM transfers. I don’t remember exact steps so there could have been a bit…
eSIM transfer also typically doesn’t require any intervention, usually it just goes across to the new device
Transferring eSIM from one iPhone to another can be restricted by the carrier. Here in India, the second largest carrier (Airtel), does not support the native iOS eSIM transfer process. It’s a separate set of steps (the ones published on Airtel’s website won’t work, despite customer care claiming that it does). What works is almost like applying for a new or replacement eSIM.