“The recently rumored, larger-screened ‘iPhone Math’, or more likely ‘iPhone Plus’, is plausible as an additional model (not a replacement) alongside the 4’ iPhone. And there’s a good chance that it would have a 4.94’, 16:9 screen.
The theory is easy to understand: perform John Gruber’s Mini-predicting math backwards. The iPad Mini uses iPhone 3GS-density screens at iPad resolution. What if an iPhone Plus used Retina iPad screens with iPhone 5 resolution, keeping the rest of the design sized like an iPhone 5?
Its 640 × 1136, 264 DPI screen would measure 4.94’ diagonally, and it would look roughly like this next to an iPhone 5:”
Not going to lie, I think I would buy this instead of an iPhone 5S/iPad Mini combination.