According to 9to5Mac report, the much-awaited iPhone will have a rear design identical to that of the current iPhone, similar to the transition from the iPhone 5 to iPhone 5S. Despite the identical exterior, many small changes are evident inside the iPhone 6S frame.

Other reports state that Apple has started early production of new iPhone models with a feature called Force Touch which was first unveiled for the Apple Watch and the newest MacBook model.

However, the date and model of the next iPhone has not been confirmed by Apple.

The iPhone 6S is likely to have the integrated fingerprint sensors the hitherto iconic 'home' button. Personnel from within the Taiwanese integrated circuit design industry are identifying the next steps in Apple's expansion of its in-house engineering remit, say sources.

The next iPhone will look to tap the growing obsession with the selfies as the device may feature a front-facing camera with flash support.

The upcoming iPhone may house a 2GB of RAM, Apple A9 SoCs, and 12-megapixel camera. The new Apple's device may also feature Touch ID support, NFC for Apple Pay, 802.11ac WiFi capabilities and LTE Advanced that have become integral to the iPhone. Apple had announced its iPhone 6 and iPhone 6 Plus in September last year.