Difference in Screen other than size?

[Benz63amg]

Is the display of the Series 4 better than the display in the Series 3 in any way or is the difference basically just the size?

 

[KrisLord]

Is the display of the Series 4 better than the display in the Series 3 in any way or is the difference basically just the size?

The screen is physically bigger and also has more pixels.

No mention of brightness or viewing angles in apples coverage.