04-02-2018, 10:32 PM
(04-02-2018, 10:01 PM)Blighty Wrote: Digital images only have sizes in pixels. They do not have ppi or sizes in inches. So you use the pixel size 1920x1080. Create an image that size.
For your phone:
1920 pixels / 5.2 inch = 369 ppi, not quite the 428 ppi
(maybe the 5.2 inch is the size of the case, not the size of the screen)
On smartphones the screen size is the diagonal, like for TVs. It is roughly 1.2x longer than the long side.