phone screen are mostly fhd(2 MP) OR QHD (4MP)
Monitor ,tv are 8mp(4k)
So 4mp screen cannot display image @ 16mp,12mp etc
But why high resolution image looks sharper
And whats the point of MANUFACTURES TELLING CRYSTAL CLEAR 25MEGAPIXEL PHONES (since the screen is only 2mp)
(EXCLUDE THE POINT OF ZOOMING IN TO SEE WITHOUT LOSS OF DETAIL)