Apple is expected to launch its latest iPhone next week, after sending out invites for an event at its headquarters in California.
It is believed the technology giant will unveil the iPhone 5S at an event at its Cupertino base on September 10.
The next-generation device will feature a fingerprint sensor for enhanced security along with a 12 or 13-megapixel camera, according to reports.
There is also speculation that a second, cheaper version of the iPhone will be unveiled this year called the iPhone 5C, which is expected to be available in a range of colours.
Apple previously announced it is introducing a new operating system - iOS7 - described by chief executive Tim Cook as ‘’the biggest change to iOS since the introduction of the iPhone”.
The new software has been designed to make the iPhone appear bigger, with features crafted to take advantage of the entire screen.
Text is said to appear sharper, while a ‘’control centre’’ on the phone allows users to adjust settings with just one swipe from the bottom of the screen.
This gives instant access to functions such as airplane mode, wi-fi, Bluetooth or Do Not Disturb, and enables users to quickly pause or play a song, jump to the next track and stream music.
A ‘’notification centre’’ will now be available from the ‘’lock’’ screen so users can view updates with a ‘simple swipe.