Spence writes that Apple could pick a 4.94-inch screen for the device, arguing this theory by explaining how the company released the iPad Mini.
Apple designed the mini tablet with a 7.9-inch screen, while competitors launched 7-inch products.
In the case of the iPhone 6, the author believes that the final choice will be a 4.94-inch display as that would make a difference between the iPhone and other smartphones.
He also expects Apple to keep the 1136 x 630 resolution and not opt for a new one.
An article by 9to5Mac on the dimension of the next iPhone screen speculates on what approach Apple could take in implementing this feature.
Thus the current resolution could be doubled at 2272 x 1280 pixels in order to spare developers of having to update applications.
The article reads: “That would be by far the simplest approach for Apple to take. Provided it keeps the aspect ratio the same as the iPhone 5/C/S, then it can continue to use an 1136×640 display. All existing apps continue to work as-is, developers don’t have to do any work to support the larger display and everyone is happy.”