According to AllThingsD, the next Apple keynote will take place on September 10. On this occasion, the company could unveil the iPhone 5S and a low-cost version of the rumored iPhone 5C.
The iPhone 5S is an update of the previous version, with an improved processor, an upgraded 12-megapixel camera with a dual-LED flash and perhaps a fingerprint reader.
Recent leaks have shown that the budget iPhone is likely to come with a plastic shell, and that it will be declined in various colors.
Obviously, the iPhone 5S and the iPhone 5C will be equipped with iOS 7.