The iPhone 6, which is reportedly going to be available in 4.7- and 5.5-inch variants, will have a resolution of 828 x 1472 and 1242 x 2208 respectively. This is significantly greater than existing iPhones' 640 x 1136 ratio.
These resolutions were discovered by 9 to 5 Mac inside a file within iOS 8’s Springboard application. Springboard is the term used for the iPhone’s Home screen, where you’ll usually launch apps from.
While Apple made the iPhone 5s slightly longer, the iPhone 6 may be bigger on all sides. However, despite this increase in size, the iPhone 6 would still be sharper than the iPhone 5s. The increased resolution also means that the iPhone 6 will surpass Apple’s self-imposed minimum requirement to qualify as a Retina display.
If the rumours are true, we don’t have long to wait as Apple is allegedly hosting an event on September 9th to announce the iPhone 6.