5K?
When screen resolutions are usually quoted, be it 480, 576, 720 or 1080, doesn't that refer to the number of horizontal lines?
Which marketing dick decided that all of a sudden it was OK to use the number of vertical pixels to define this, started by the 4K misnomer?
Here, buy my new 6K screen, it's amazing (6000x480 pixels)
And yes, I know it wasn't an Apple idea.