New rumors suggest that Apple is preparing to launch the iPhone 6S and iPhone 6S Plus with another handset model in September.

According to leaker Evan Blass, also known as Twitter user evleaks, this third model could be the iPhone 6C.

"Sounds like iPhone 6S, Plus and 6C will all arrive concurrently," Blass tweeted.

As the direct successor of the iPhone 5C, which officially came out in 2013, the iPhone 6C will also sport a small display. In fact, according to GSM Arena, the upcoming handset will still retain the same 4.0-inch display just like its predecessor.

Despite sporting the same display size, the iPhone 6C is expected to come with upgraded specs.

As noted by Mac Rumors, the smartphone might be powered by a 14 or 15nm FinFet chipset developed by TSMC and Samsung instead of an A8 chip like the one on the iPhone 6. Also, instead of sporting a plastic exterior like the iPhone 5C, the 6C variant will reportedly feature a full metal body.

In addition, it could also come with a bigger battery capacity at 1,715mAh instead of 1,500mAh like its predecessor.

It is not yet confirmed if the iPhone 6C will be sold by Apple at a relatively cheap price since the iPhone 5C was marketed as the company's budget-friendly handset.

Also, it is still not clear if the small-sized smartphone will actually debut along with the iPhone 6S and its Plus variant on September 9. Despite the revelation by Blass, other sources still think that the successor of the iPhone 5C will be unveiled sometime during the second quarter of next year.

Hopefully, all of these details will be cleared up by Apple within the days leading up to the launch of its latest line of devices.

As for the main models expected to come out next month, the iPhone 6S and iPhone 6S Plus will feature 4.7 and 5.5-inch screens respectively.

The two are also expected to come with Force Touch, a new kind of control option first introduced by Apple through the Apple Watch.

As previously revealed, Force Touch technology will provide devices a wide-range of control options by sensing the varying levels of pressure applied by users' fingers on the screen.

This means that with this new feature, users will no longer have to go through unnecessary steps in order to activate a certain function of a program or app.