Apple has not announced an official date, but the release date is backed by Wall Street, Bloomberg and is consistent with Apple’s strategy of releasing new iPhone models on the second Tuesday of September.
Assuming Apple takes the same marketing approach as last time, the iPhone 6 will be available on 19 September, 10 days after its release.
But according to technological innovative news site VentureBeat, the 4.7in model could be ready “several weeks or even a month” earlier than the 5.5in iPhone 6.
The rumours of bigger-screened iPhones, which aim to address the demand for large phones in Asian markets, were originally released by Japanese news magazine Famitsu in March this year.
Famitsu says the iPhone 6 screen would feature “significantly” higher resolution in comparison to the iPhone 5S, which boasts a 1136 x 640 display.
A resolution of at least 1704 x 960 would be required to give the iPhone 6 5.5in screen the same pixel density of the iPhone 5 says The Age.
Minor improvements to the Apple Touch ID fingerprint sensor are said to improve security while also cutting down false rejections experienced by current iPhone 5s users.
The rumoured NFC chip would allow buyers to use their phones for mobile payments.
Another alleged feature of the iPhone 6 is sapphire glass, a material that is significantly stronger than the Gorilla Glass displays currently used by Apple, but is much more expensive and difficult to mass produce.
Analysts say there has not been enough sapphire glass in the manufacturing supply chain to conclude the iPhone 6 will feature the new displays. Perhaps just one of the iPhone models will use a sapphire glass screen?
Other features the iPhone 6 may sport include faster Wi-Fi (802.11ac), an A8 chip (running at a frequency of 2.0 GHz per core), a possible special ‘handshake’ between iPhones and Beat headphones using a Lighting connector.