SGS4 = 5" 1080p Pentile
I've done a lot of reading on my phone and the SGS3 (Moon Reader+ ftw) - and from both being 4.7" 720p screens, I far prefer the crisper and more natural appearance that the non-Pentile screen affords with text.
In my case, the normal hardening of the cornea with age sets in, and my range of focus is reduced.
So for me, 720p non-Pentile and 1080p either way isn't a factor on screens of equivalent size.
My usual complaint is the over-saturation of colors on a lot of S/AMOLED displays. The SGS4 allows you adjust that somewhat and the Note 2 just doesn't seem bad that way to me.
So if the color balance is reasonable on the Moto X, I'd personally be looking at the difference between the 0.3" larger display on the SGS4 vs the potential battery savings on the Moto X.
So if the colors are right, I'd say that comes down to personal preference.
I'm insufferably pleased with the display I have now, so I'd lean towards the power advantage on the X, all things being equal.
And if your eyes are younger and you want uncompromising clarity, you want to be checking out the HTC One.
Can't wait to see.
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If that picture is accurate, then even if the battery isn't user replaceable, it's likely going to be a whole lot easier/cheaper to deal with than if battery was even partially tucked under the motherboard.
I make a lot of fun of marketing, but it's not all evil just because, and the existence of that beauty shot is more than a little bit intriguing.
Not the least of which is the antenna placement shown.
The dual / MIMO active LTE antennas that everyone is on about are suggested to be at the top and bottom - a configuration shown by the One to make a lot of sense (no pun).
At this point, although I have a lot of questions, I really want to know how this thing sounds.