In mobile, we've long gone past the point where we're no longer suffering from pixelization or other viewing issues caused by lack of resolution. After hitting milestones like the iPhone 4 with its Retina Display of 326 ppi, the 1080p HTC DROID DNA, and the QHD LG G3, we're already in a position where we might even be experiencing excessive screen resolution. The move from 720p to 1080p brought little, but still discernible difference with regards to clarity. However, now that LG has initiated the push for QHD (1440 x 2560 pixels), we start to wonder if there's really need for anything higher than 1080p on a screen with a size of about 5, or even 5.5 inches. As we said in our LG G3 review, the differences between QHD and 1080p in terms of viewing experience are more than negligible, so if you expect the QHD resolution of the G3 to noticeably improve things and make them seem crisper and more detailed, you're in for a disappointment.

Besides the G3, the rest of the participants in this comparison, except for the iPhone 5s, are hovering around the 5” display diagonal mark. This results in a pixel density of well over 400 ppi – a very high number that guarantees an extremely clean and easy to read image. It's difficult to really rank all the handsets in this category, as most of them exhibit more or less the same level of detail. The iPhone 5s and its Retina Display are also very good in terms of viewing experience, but with a pixel density of 326 ppi, there's just a smidgen of visible pixelization with it, in case you look carefully. Still, it isn't anything significant enough to make you look away from it.

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