Gadget web site Stuff reportedly acquired a still image product listing of UK mobile operator Vodafone where the Apple iPhone 6 4G smart phone is included. The rumours on the upcoming iPhone 6 are now pointing to a possible September 2013 release date after the unveiling of the iOS 7 this June.

In 2012, Apple launched the iOS 6 at the yearly WWDC event with the iPhone 5 released in September. Vodafone appears to be preparing for the arrival of the latest Apple device which is iPhone 6 and not iPhone 5S based on the listing that allegedly appeared on Wednesday night.

The appearance of the unveiled Apple smart phone at a retailer store's inventory normally means get ready for its upcoming arrival. It is reportedly an advanced planning scheme that many mobile carriers utilise to attract more subscribers.

With the leaked Vodafone listing, the iPhone 6 will be fully equipped with the 4G feature that accompanies the UK networks. The other expected features and specs on the iPhone 6 include a larger screen display and a thinner body design.

The screen display can reach a size as big as 5 inches currently on the works. Other iPhone 6 reports were centered on its home button and navigation features. Concepts ranging from a fingerprint sensor to a flexible framework continue to increase the interest and excitement of the Apple enthusiasts.

Recently, Apple has been granted a patent on a disappearing button or slider. It is expected to be included in the upcoming iPhone 6 where the buttons and controls turning invisible when the smart phone is not in use but reappears based on heat sensors.

Other reports suggest that an upcoming plastic-made and low-cost iPhone model will arrive as well this early summer. However, no statement has been released yet to confirm or deny the circulating rumours on the upcoming Apple smart phone models.