How to create ios screenshots

Hi, any advice on how to create screenshots for app store on iOS devices? Trying to create screenshots for iPhone 5.5" and Ipad 12.9", but I dont have those devices.

Follow iOS simulator build instructions to create simulator build, then take screenshots for appropriate devices. https://docs.expo.io/versions/latest/guides/building-standalone-apps.html

Leaving this for anybody else searching for iOS screenshots.