How to transfer your data and set up your new iPhone | Apple Support
Find out three ways you can transfer your data to a new iPhone. We’ll show you how to use iCloud and your previous device, how to transfer directly from your previous device, and how to restore from an iCloud backup if you don’t have your previous iPhone.
To find out more about this topic, visit the following articles:
Transfer data from your previous iOS or iPadOS device to your new iPhone or iPad: https://support.apple.com/119967
Use Quick Start to transfer data to a new iPhone or iPad: https://support.apple.com/102659
Use iCloud to transfer data from your previous iOS or iPadOS device to your new iPhone or iPad: https://support.apple.com/108344
How to back up your iPhone or iPad https://support.apple.com/118426
Get temporary iCloud storage when you buy a new iPhone or iPad: https://support.apple.com/104980