iOS Simulator Screenshots "Wrong Size" for iTunes Connect

For people who need to scale the window size of the simulator, turn off "Optimize Rendering for Window Scale". It's under "Debug" menu.

It would give you the screenshots of the device dimension.

iPhone 6.5 display screenshot specifications lists iPhone Xs Max and iPhone Xr which is misleading. You must take screenshots using the iPhone Xs Max simulator which generates a 1242x2688 image. iPhone Xr screenshots are 828x1792 and will be rejected.

"Debug > Optimize Rendering for Window Scale" does not exist in Xcode 10.2

Looks like iOS simulator started scaling screenshots. Just check its real size if you are using iOS simulator with non-100% scale.