Apple is believed to be testing at least two new iPhone prototypes, which are supposedly encased in locked shells to disguise their exterior design, at their headquarters.

This report comes by way of 9to5Mac who cite sources that say that the prototypes feature larger resolution screens when compared to previous iPhone models. The screen width is apparently still 1.94 inches but the height is being extended, giving the device’s screen a diagonal measurement of 3.9 inches (or a resolution of 640 x 1136).

A new version of iOS is reportedly also in the works, featuring an extra row of icons on the home screen, a feature that would be taken advantage of by the extra display space.

The apparent prototypes both feature a home button and the rumoured smaller dock connector, which is supposed to be different in shape than was initially believed.

Source: Business Insider