Apple may choose to swap its existing 3.5-inch screen in the iPhone 4 for a bigger 4-inch model for the iPhone 5 apparently in a move to compete with bigger screens available on the Android platform.
Digitimes reports that component suppliers have noticed that Apple is interested in expanding the screen size of the iPhone 5 to 4-inch, adding that production lines testing for the next generation iPhone have already begun.
There are already a number of smartphones with screen sizes bigger than 4.5-inch on the market; Sharp has a 5.5-inch model, Acer has a 4.8-inch one and Dell already has a 5-inch Streak launched last year.
Dell was fingered as the manufacturer that helped "redefine the market" by using a screen size that sits between normal superphones and tablets.
With Android smartphone manufacturers committing to launching top of the range handsets with 4.3-inch or bigger and sticking smaller screens on mainstream smartphones, the onus is on Apple to try and match its competitors.
AU Optronics and Chimei Innolux are reportedly going to manufacture the displays both for the iPhone 5 and the iPad 2.