Apple is expecting to sell 70 to 80 million units of iPhone 6 smarphones on its launch in the fall, according to Wall Street Journal.

The report added that the company ordered the said number of units right for the launch of the handset. This is bigger than last year's number of smartphones ordered for the iPhone 5S and iPhone 5C. 50 and 60 million were ordered for last year's release.

One of the probable reasons why Apple will order such generous number of iPhones is that the company will release two iPhones. Instead of releasing a successor of the company's mediocre iPhone 5C, Apple is expected to introduce its 5.5-inch phablet.

According to rumors, the iPhone 6 will come in two variants. One model will sport a 4.7 inch screen panel and the other will have a 5.5 inch screen display. The one with a larger screen display is reported to sport a panel with 2K resolution.

Some of the rumored features of the next iPhone 6 will be a powerful 64-bit A8 processor, iOS 8, as well as improved fingerprint sensor and camera. However, the Cupertino-based company has not revealed the official specs and features of its flagship phone.

Meanwhile, Apple's new iPhone 6 is speculated to be released in September 19. Based on Apple's previous releases, it is most likely that its flagship phone will be released on the said date. In a recent leak in Amazon Japan, the post stated that the smartphone will be available for purchase on September 30.

There were talks that the 5.5 inch variant of iPhone 6 will be Apple's entry in the phablet category and will be available a few months after the release of the 4.7 inch model. The smaller version of iPhone 6 is rumored to be released in its usual launch window in September and the 5.5 inch phablet is rumored to be launched in October.