What’s the relationship between a standard 3.5mm audio jack and iPhone 7's battery life, you ask? Some reports indicated that Apple is looking to remove the headphone jack from upcoming iPhone design to come up with an even slimmer iPhone. Such changes would also impact the size of the phone's battery. While Apple would likely find ways to keep battery life about the same even after decreasing the battery’s size, some would argue that a thicker iPhone could pack a more generous battery.
A new schematic leak from Asia suggests that not only will the iPhone 7 Plus — or iPhone 7 "Pro," as it has sometimes been called — have the same size battery as the current 5.5-inch iPhone, but that it would also sport a certain “Pro” feature we keep hearing about in iPhone rumors. The leak might also have eliminate nearly all of the mystery surrounding the design of Apple's next-generation iPhones.
DON’T MISS: 12 paid iPhone apps on sale for free today
The schematics, found in Japanese magazine Mac Fan by local Apple site Macotakara, show what looks like a 5.5-inch iPhone 7 Plus featuring a dual-lens camera and Smart Connector port on the back, a single speaker on the bottom, and no headphone jack.
The schematics say the phone measures 158.22 x 77.94 x 7.3mm. That means the handset would have the same design lines as Apple’s current phablet, and possibly sport a battery that’s at least as big as the iPhone 6s Plus. Should the A10 chip inside the 2016 iPhones be even more energy-efficient, then the iPhone 7 Plus could have even better battery life than its predecessor, regardless of size.
A theory explaining the potential reasoning behind Apple’s decision to ditch the headphone jack pointed out that the change may have nothing to do with the phone’s thickness. Instead, Apple is simply preparing for a radical iPhone design change in the future: the removal of the home button. By ditching both the headphone jack and the home button, Apple could shrink the size of the iPhone without reducing the screen size.
Assuming the schematics above are accurate, then there are several conclusions we can reach. First of all, it looks likely that all iPhone 7 units will lose the headphone jack. Second, it seems that the iPhone 7 Plus will have a dual lens camera or at least the Premium (Pro) version of it will. Third, the iPhone 7 Plus will probably be similar in thickness to the iPhone 6s Plus (7.1mm). Earlier rumors suggested this year's iPhones would be substantially thinner.