Original iPhone photos lose quality after transfer.
When my daughter transferred a number of photos taken with her iPhone XR to my iPhone 11, the original photo Dimensions of 3,024 x 4,032 on her iPhone was displayed at lower quality of 1536 x 2048 on my iPhone. I search the net for hours and used Shared Albums with no success, it seems the problem could be the way the photos were transferred, How can I get the photos original quality on my iPhone? Thank you in advance.
iPhone 11, iOS 13