The rumor mill is already on overdrive as Apple is set to release a new iPhone on Sept. 9 as HNGN earlier reported. Conventional wisdom dictates that consumers should not expect a radical upgrade especially in terms of external design since we are talking about the iPhone 6s. The gap should not be that huge in comparison to that between an iPhone 6 and an iPhone 7. Sources, however, reveal that Apple may introduce some big upgrades, which include updated camera, "force touch" and better internals.

The buzz behind an updated camera appears to be the most exciting. The iPhone, of course, is considered to have one of the best camera phones presently, but Apple seem bent on breaking industry standards. A report by Cult of Mac revealed that the iPhone 6s will have a dual-lens camera, complemented by an optical zoom capability and a 3-D pressure sensor.

The camera upgrade got more credible when Business Insider learned that Apple has commissioned suppliers to manufacture five-element senses that will work with a 12-megapixel shooter. "In order to increase a camera's aperture, which is essentially a passage that allows light to enter through the camera, you would need to add more elements to a camera's lens," the report said. The sensor upgrade would mean that the new camera will allow the iPhone 6s to capture brighter and sharper images.

The rumored 3-D pressure sensor in the camera also confirms another tidbit, which is the introduction of "force touch" used in the Apple Watch and, later, in Macbook trackpads. It appears that the new iterations of the iPhone will sport this technology as well, which differentiates between a tap and a press through some form of haptic feedback.

Internal upgrades may include the addition of 2GB of RAM, according to Uber Gizmo. So far, the rumors are silent on battery and storage capabilities, which means that these are likely to stay the same.