Width - width of the screen, less a little bit of margin (32-96 pixels depending on screen resolution density).
Height - at least 100-300 pixels (depending on screen resolution density) and at most 67% of the screen’s height.
Scales depending on image dimensions and device’s screen size.
News feed will avoid cropping and scale the height of the image if possible within the specifications below.
On a standard iPhone X/11/12, images will be between 1029x300 and 1029x1623.
News Post Image
Width - width of screen.
Height - half the width.
Scales depending on device’s screen size.
On a standard iPhone X/11/12, images will be 1125x563.
Note: Images in News Posts can be tapped on for a gallery view. In this view, images are not cropped and will display as large as possible on the screen.