Starlight145 wrote:
Thanks AnnieL2. Would this also apply to sms texts which I assume also be erased also from the iPhone with iMessages?
You can transfer most of your data, and none of your iMessage messages, nor SMS, nor app purchases, nor subscriptions.
See these two threads for some tips on how to transition while losing as little data as might be feasible…
Apple ID - Apple Community
https://discussions.apple.com/thread/8371130?answerId=33333380022#33333380022
If you delete your Apple ID, ALL ASSOCIATED ACTIVATION-LOCKED DEVICES WILL BE BRICKED.
Again, any devices with an Activation Lock associated with a deleted Apple ID are bricked. Best case, you have original purchase receipts showing serial number, and can convince Apple to un-brick the device. As has happened rather too often for those deleting their Apple ID without first having disassociated their devices, permanently bricked,