If we believe on rumours the upcoming iPhone 7 will have just 6.1mm thinner port that is the same as the iPod Touch. Apple’s latest iPhone 6S has 7.1mm thin port which is thicker 1mm than its upcoming iPhone 7. According to Macotakara (A noted iPhone leak blog) Apple will drop the 3.5mm headphone jack in upcoming iPhone but specifications like it’s dimensions and design will be same as iPhone 6S. Also It has been said that it will be water-proof specifications with new composite materials, but it keeps using the metal case as before, remaining at the drip-proof level.
The site also believes that the upcoming iPhone 7 will have a stereo speaker system. The built-in iPhone speaker has been monaural so far. As we all know Apple’s all previous phones have a single mono speaker. Also as per Macotakara blog Apple’s upcoming iPhone 7 outer camera lens cover will be integrated into the main body and the iPhone 7’s lens is not a dual lens.