How to sync 2 iPads
I have 2 Apple iPad Airs but their iOS is 15.6 and 12.5.5. Is it possible to have both of them synced? I would like them both to be identical. If so, can you walk me through on how to get this done?
iPad Air, iOS 12
You can keep the majority of your data synchronised by using iCloud services.
You’ll not be able to “synchronise” your Home Screen layouts - these will have to be managed manually.
The iPad User Guide is a rich source of frequently overlooked information about your iPad and iPadOS. The Guide is available both online using a web browser (such as Safari), or as an Apple Books download:
iPad User Guide - Apple Support
https://books.apple.com/book/id1567104892
Similarly, the iCloud User Guide will help you understand and configure iCloud services to meet your needs:
iCloud User Guide - Apple Support