I've same problem !! they are using strong drugs :) How is possible that all Apple docs report a wrong resolution for 5.5" Devices ???

They are crazy !! Is there a simulator that create screenshot that they want ?? Incredible..

Apple must to correct his docs! https://developer.apple.com/help/app-store-connect/reference/screenshot-specifications They write: 5.5" Display -> 1242 x 2208 pixels (portrait) iPhone 8 Plus iPhone 7 Plus iPhone 6s Plus Running simulator with iPhone 8 Plus screenshot have resolution 1125 x 2436 !!! :(

Do you know a tool that is able to generate the various sizes starting from a single upload of each screenshot?