The unannounced iPhone 6 and iPhone 5S are clouded by a myriad of rumours. A lot of concept renders are emerging on the internet as the devices' release date nears.

These speculations have no concrete basis except for the patent filed by Apple as well as concepts and rendered images of the upcoming devices.

Rumour has it that the next iPhone will feature Retina or IGZO screen display, A7 quad core chip processor, iOS 7, 128GB internal storage, 13 mega-pixel camera, and longer battery life. The lack of NFC support on the iPhone 5 was one of the biggest criticisms aimed at Apple's smartphone.

Meanwhile, the cheaper iPhone 5S is rumoured to sport a plastic casing, 4-inch screen display, dual core processor and 8-megapixel camera.

It is initially reported that the new iPhones will be launched in June along with the upgraded iOS. However, other reports stated that the devices will make its debut in September.

The Apple chief Tim Cook also dropped several hints that the upcoming iPhone 6 and 5S will be released later this year. Cook said that no new products are to launch before the end of the year.

However, the Cupertino-based tech company did not give an official statement on the rumours surrounding iPhone 6 and iPhone 5S.

Below are the top five outrageous rumours that made the rounds these past few months.