UPDATE: Check out the official iPhone 5S features here. The iPhone 5S releases on September 20th (the announcement was on 10th).

According to AllThingsD, Apple might announce its next iPhone on September 10, with the iPhone 5S release date falling about two weeks later (Sept 20th or thereabouts).

In a report published earlier, AllThingsD’s Ina Fried reported that the iPhone 5S is slated to be announced in a big event that Apple is planning to hold on September 10th. Coming from a publisher as big as them, this could be it, folks.

iPhone 5S Release Date Likely on September 10th

AllThingsD wrote:

Apple is expected to unveil its next iPhone at a special event on Sept. 10, sources told AllThingsD.

We’ve long speculated that the iPhone 5S would be released in September although the dates have missed the mark. A much earlier rumor pointed to a later date than the 10th of September. Apple has been almost consistent in the announcement and subsequent launch of iPhones. September has almost become the pattern for its product launch cycle.

While the report does not delve into the release date for iPhone 5C, the cheaper iPhone model, experts are of the opinion that iPhone 5C would be launched alongside. The debut would be September 10th and about two weeks later, iPhone 5C should hit the market along with iPhone 5S.

The smartphones will run on iOS 7, the mobile operating system that Apple released at the WWDC in June and has since released beta 5 of the same. With just about a month to go, it’s likely that Apple would release at most a couple more betas of iOS 7 before diving into the final version.

As to the names, Macotakara appears to confirm that the devices will be named iPhone 5S and iPhone 5C. The 5C was picked up from photos of packaging leaked somewhere. The 5S has been long-rumored following the pattern of 3G(S) and 4(S). It has been suggested that partial upgrades to previous models are given the ‘S’ tag.

While the iPhone 5S price would follow iPhone 5’s pattern (starting from $199), the prices of iPhone 5C are still widely speculated. A non-contract device is rumored to cost in the range of $330-$400.