Apple iPhone 5
Apple iPhone 5Reuters

Apple Inc's upcoming iPhone 5S is expected to arrive in a glitzy form, with latest reports suggesting that the next generation device is likely to feature a convex sapphire home button along with a sapphire lens cover.

9to5mac citing KGI Securities' Ming-Chi Kuo said that iPhone 5S will come with sapphire fingerprint reader home button. KGI analysts also suggested that the sapphire would prevent scratches on the home button and finger print sensors. It was also reported that the finger print sensor will be placed under the home button.

"Convex home button creates space for fingerprint sensor; yield to improve. We think that a fingerprint sensor will be placed under the home button of iPhone 5S. However, assembling it could be difficult as the space under home button is limited as it already has to accommodate the Lightning connector, speaker and microphone. Thus, we think the shape of the home button could be changed from concave to convex to create more space for a fingerprint sensor," 9to5Mac quoted Kuo as saying.

From features to the launch details and tentative names, there have been many rumours about Apple's next generation iPhones in the past few weeks.

Talking about the names of Apple's upcoming devices, Japanese site Macotakara citing its sources reported on Sunday that the next iPhone will be called "iPhone 5S" and the cheaper iPhone will debut as "iPhone 5C".

In another report, it was said that the Cupertino firm will debut its next iPhone model on 10 September. A report by Macotakara also suggested that iPhone 5S would come in a "champagne gold" shade. Stipulated features of iPhone 5S include iOS 7 operating system and a 13-megapixel camera . A KGI analyst indicated that iPhone 5S would likely keep the 8-megapixel snapper seen in the previous model but with more improvements.