Is this the Apple iPhone 6C?

Could this be the rear shell of Apple's rumored iPhone 6C?

Images of the supposed part posted online by appeared to bolster rumors of plans for four-inch iPhone 6, FutureSupplier.com said.

FutureSupplier said there are two differences between the supposed new rear housing and that of the iPhone 5C, its would-be predecessor, including the rear camera flash hole.

While the iPhone 5C has a round-shaped flash hole, the purported iPhone 6C's is oval, it said.

A second difference involves two loudspeaker holes on the bottom of the supposed iPhone 6C rear housing, compared to one on the iPhone 5C.

Enthusiast site 9to5mac.com noted recent reports indicated the rumored iPhone 6C will have a four-inch screen for those who don't dig the iPhone 6's larger screen.

It also noted the supposed 6c, unlike the iPhone 6, does not feature a “camera bump.”

"The opening for the lens seems to be flush with the rest of the shell. Additional changes can be noted by looking at the device from another angle," it said.

Also, it said the new photos of the supposed 6C show "eight speaker holes arranged in two rows on what looks to be a noticeably thicker body that is found on the iPhone 6."

The site added the microphone now has more openings, with six cutouts instead of one.

However, the site noted it is difficult to say for now if the photos are fake or not.

"While some of the changes seem to be a step backwards for Apple, like the seemingly thicker design and elongated camera flash, the redesigned audio grilles and the removal of the 'camera bump' could indicate that it’s actually a step forward," it said. - Joel Locsin/TJD, GMA News