Last week KGI Securities analyst Ming-Chi Kuo estimated that the possible screen resolution for the 4.7-inch iPhone would be a 1334×750 Retina display with a pixel density of 326 pixels per inch.
So far, Apple has always been careful about changing the resolution on the iPhone in order to make the adjustments as easy as possible for developers.
MacRumors and a The Verge forums user explain that a format with 1134×750 pixels would bring several advantages.
“If Apple were to adopt a 1334 x 750 4.7-inch display as predicted by Kuo, it would preserve the same pixel density (326 ppi) as the iPhone 5s,” MacRumors writes. “That means that all existing user interface elements, such as icons, would be the same size but would allow for more screen space.”
Thanks to help from a designer, the site wrote that with the “exact same icons and spacing them out to fill the screen, 1334 x 750 pixels allows Apple to fit exactly one extra row of icons onto the iPhone home screen.”
They even provide an image presenting the appearance of the home screen of a bigger iPhone display.
As for unoptimized apps, The Verge forum user Pi is exactly 3 believes they could function in a letterbox style with a black border.
“Apple has been not too subtly pushing developers to use auto-layout when designing their apps,” user Pi is exactly 3 wrote on The Verge forums. “Properly used, auto-layout can adapt an app’s layout to various screen dimensions based on rules and priorities set by the developer. By only changing one dimension with the 4-inch screen, Apple seemed to force a half step on developers to use this system full time.”
He created a mockup that shows what unoptimized apps would look like on a 4.7-inch iPhone compared to optimized ones.