[tomflack]

A4 has an aspect ratio of 2:3, not 9:16. The iPad is 3:4 which is significantly closer to A4 than a weirdly tall portrait widescreen tablet (3:5.33333)

[isani]

Actually, A4 has an aspect ratio of one to the square root of two. Your point still stands, as this is even closer to the iPad screen than 2:3.