We've heard a lot about the upcoming iPhone 6 from Apple, but nothing much has been said about the camera. That appears to be changing as a new rumor suggests that the iPhone 6 will come with a massive 13-megapixel camera, a huge upgrade over the 8-megapixel camera found on the iPhone 5S.

According to a website called GforGames, the iPhone 6 is expected to launch with a 13-megapixel camera. The sensor is an improved version of the Sony Exmor sensor. From what we've come to understand, the Sony Exmor IMX220 is a 1/2.3-inch sensor, and it is capable of supporting up 20-megapixels.

Apple is well-known for investing millions into its camera sensor, though the company has always refrained from entering the megapixel count race because adding more megapixels tend to have an negative effect on the low-light performance.

Furthermore, we should also bear in mind that Apple usually boots the camera specs in the S model iPhones, so already we have some major doubts where this rumor is concerned. And why not? The original source comes from a Chinese web forum, which may not be the best place to find legitimate iPhone 6 leaked information.

Still, we have to keep an open mind about this. The age of 4K is upon us, and chances are the Cupertino tech company would want to be a part of this rise before the market becomes mainstream. It would then make perfect sense for Apple to add a camera to the iPhone 6 that is capable of taking 4K videos, which in turn would make the device future proof for years to come.

If Apple does go ahead and use the Exmor IMX220 camera sensor, it wouldn't be the only one. Sony is also expected to use the sensor in its upcoming Sony Xperia Z3 Android-based smartphone that is scheduled to launch sometime this year. Unlike the rumored 13-megapixel sensor inside the iPhone 6, Sony is going for 20-megapixels.

Previous leaks of the iPhone 6 suggest that the Apple is planning to launch 2 smartphones. One with a 4.7-inch Sapphire display, and another with a much larger 5.5-inch Sapphire display.