The purpose of the change is believed to be that of making the iPhone more competitive against other Android smartphones, but it could actually be related to the battery life.
David Pogue of the New York Times claims that the next iPhone will have a larger screen and a modified design as Apple plans to implement a higher capacity battery in the device.
“Somewhere along the line, I remember somebody at Apple telling me why there wasn’t a 4G LTE iPhone — a phone capable of getting onto the superfast cellular networks sprouting up in major cities. And the reason was battery life,” Pogue writes.
“The 4G circuitry of the time (a couple of years ago) drew so much power, the battery would be depleted unacceptably quickly. For proof, all you have to do is look at 4G Android phones, whose batteries generally don’t last even a full day. So I’m guessing that the iPhone’s upsizing will be equally necessary to accommodate a bigger battery, so that Apple can solve the 4G/dead battery issue.”
Pogue believes that the implementation of 4G compatibility would require a higher capacity battery that would be bigger and thus the screen size of the new iPhone would be boosted to 4 inches.