The size of the screen isn't very relevant, because for proper use there needs to be a lot of lenses between the screen and your eyes, and they can use those le

The size of the screen isn't very relevant, because for proper use there needs to be a lot of lenses between the screen and your eyes, and they can use those lenses to magnify the screen to whatever field of view they want. Mostly a smaller screen just makes the headset smaller.