The new iPhone could be one of the most vital devices in Apple's history with the iPhone 5S and iPhone 5C simple updates to former models, there is a lot of pressure piled on the iPhone 6 when the device is expected to be released at this year's WWDC event.

The iPhone 6 release date will be in 2014, nonetheless, it is still unclear when the iPhone 6 will be officially released this year.

According to TechRadar, the release date might finally be revealed at WWDC in June. At the event, Apple will release of iOS 8, in addition, a larger-screened iPhablet is also expected to be released at the tech event in June.

After the WWDC event in June 2014, Apple is expected to debut the iPhone 6 in September, alongside the iWatch and the first view of iOS 8, to allow it to both bring a brand new product to market in addition to maintaining its schedule. This claimed was made by KDB Daewoo Securities, which does have a good record in Apple early leaks, according to TechRadar.

Apple has debuted the last few iPhones at a major event in September, so the safe bet is on September 2014 for the iPhone 6's upcoming launch but would not be the lone mobile hardware we see from the company in 2014.

Reports claims two iPhone 6 models with larger screens will available in 2014. One of the newest device might feature a 4.7-inch display and the other a 5 to 5.5-inch display. Apple is allegedly improving the camera, but it is still unclear if the device will have an 8MP sensor with improved quality or if will be a higher MP sensor.