[App] iTunes Connect Screenshot Sizes for iPhone and iPad

image:
iPhone 6 Plus(5.5 Inch): 1242 x 2208 px

iPad Pro (12.9 Inch): 2732 x 2048 px

video: (in 15 or 30 seconds)
iPhone 6 Plus(5.5 Inch): 1080 x 1920 (Portrait)

https://developer.apple.com/support/app-previews/