I'm not sure if 4K is enough to be Retina on a 27 inch at normal viewing distances. Apple made their 24 inch iMac 4.5K, and they call that Retina. And also thei

I'm not sure if 4K is enough to be Retina on a 27 inch at normal viewing distances. Apple made their 24 inch iMac 4.5K, and they call that Retina. And also their 27 inch collab with LG is a 5K screen.