It could be your sight, or the size of your display. You never mentioned how big it was. If it's a monster 18" laptop then the difference between 1080 and 4k is

It could be your sight, or the size of your display. You never mentioned how big it was. If it's a monster 18" laptop then the difference between 1080 and 4k is a lot more significant than if it's a 14" display where you almost can't even tell the difference. It's all about pixels per inch. I always prefer higher quality pixels as opposed to more of them, I don't mind 1080p if it's extremely accurate colour and amazing viewing angles, but that's just me.