The iPhone 6 is the next big thing to come from Apple and the world is excited for it. While nothing has been confirmed by the Cupertino-based company, it seems that the iPhone 6 will be coming in a pair that differs in screen size.

The smartphone is heavily linked to be offered with a 4.7" screen and 5.5" screen. Countless leaksters, rumours and speculations have been hinting on it which made it totally convincing.

Then there is the debate on the iPhone 6's release date. Again, Apple has announced nothing on this but we can expect the iPhone 6 to repeat the same release pattern of its predecessors. As such, it is best to mark the dates in September as most believed it to be coming out in that period.

The iPhone 6 will also come with many great features. Obviously, the TouchID will be returning in this year's iPhones. Also, Apple has showed its intent to compete with Samsung by offering a better heart rate sensor. On top of that, Apple will be throwing in its exclusive health booklet app in the iPhone 6.

Then again, these are still rumours and best taken with a pinch of salt. If most of them are to come true, then expect the iPhone 6 to cost $100 more than its predecessors. It will be the most expensive iPhone once released.