The S4 used a pentile screen. It will be grainy and whites will suck. The Note 2 uses an RGB screen. It's so much better then pentile. In fact there are a bunch of posts about this and how Samsung messed up.
Like the S3 it's a smaller screen then the Note 2 but it has the same resolution. But the screen on the Note 2 is RGB. Go down to you're local mobile store and look at the screen side by side. The difference is huge.
I'm pretty sure they will do the same thing with the Note 3. It will have the better screen.
I'm kinda in shock that Samsung did this in the first place. Yeah it's 1080p but who cares if it's grainy and whites and grays look bad. It's like having black lines very little ones you can barely see but there are so much of them it ruins the true colors. I know I don't have to explain this. I'm sure most of you know what I'm talking about and if you own a S3 you really know what I'm talking about. If you own a Note 2 you might not know what I'm taking about unless you've seen one side by side to an S3.
It's not always about pixel count it's about sub pixel count as well.
For example, the Note 2's screen is the same resolution as the S3's, the Note 2's screen is also .8" bigger but the Note 2 uses RGB rather then the pentile screen in the S3.
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