No I'm not in a crusade against iPhoneX
but I'm more and more surprised with the limitations of their so called flagship design and it's "super" retina display
Did you notice you're not even able to properly display FUllHD ?
Try
Especially look at the 1080 zone ( in horizontal mode of course )
Hold in this position, your iphoneX should have black borders, and it also has the necessary resolution to display the 1080 zone "pixel perfect".
Problem is it simply can't : you'll get a light gray/dark gray zone
( it should be 1 pixel lines, white and black )
They show up perfectly on an iphone "plus" for example.
It seems that the pentile disposition of pixels + general crapiness of the screens does not only prevent you to get accurate colors ( blue shift ) but also prevents you to get decent 1 pixel lines ( it just isn't able to display 1 pixel lines at that resolution : it blurs them + moiré effect)
Did you notice you're not even able to properly display FUllHD ?
Try
Especially look at the 1080 zone ( in horizontal mode of course )
Hold in this position, your iphoneX should have black borders, and it also has the necessary resolution to display the 1080 zone "pixel perfect".
Problem is it simply can't : you'll get a light gray/dark gray zone
( it should be 1 pixel lines, white and black )

They show up perfectly on an iphone "plus" for example.
It seems that the pentile disposition of pixels + general crapiness of the screens does not only prevent you to get accurate colors ( blue shift ) but also prevents you to get decent 1 pixel lines ( it just isn't able to display 1 pixel lines at that resolution : it blurs them + moiré effect)