User Guide

Underneath you can find the link to the user guide for iOS 15

https://support.apple.com/en-us/HT202033

UE Declaration:

https://www.apple.com/euro/compliance/

Underneath you can find the link to the user guide for Android and the UE declaration:

https://www.youtube.com/watch?v=bDtqORX8fzc

https://www.samsung.com/mobile_doc/