because they are using Samsung Amoled display for their ultimate iphone X :)

That's the same argument that Apple people have been trying to use for all of Apple's hardware, "It's better because Apple uses better hardware". In the case of the iMac, for example, it doesn't have better hardware, it uses the same off the shelf PC components that every computer uses. The iPhone is no different. It uses the same off the shelf components that all mobiles use. From different manufacturers perhaps, but its all the same stuff, more or less.