Every year, Apple updates its iPhones. This year, the lineup may be seeing the addition of the iPhone 6s, which will reportedly come in rose gold.

According to a research note released by KGI Securities' Ming-Chi Kuo, a copy of which AppleInsider got, Apple's newest offering will be called the iPhone 6s. A number of upgrades will be included with the newest iPhone, but possibly most notable will be the new rose gold color option that will be made available.

It wasn't clear, however, if the iPhone 6s would be made of actual rose gold, much like the luxury edition of the Apple Watch, or if the smartphone will simply mimic the color of the material. Either way, it's a great addition, bumping up color options offered by Apple to four. At the moment, silver, space gray and gold are included in the color lineup.

Aside from the new color option, Kuo's note also hints at a new design utilizing different materials for the casing. This coincides with a restructured internal design, which is being implemented to supposedly address the bending issues that plagued the iPhone 6 Plus.

Speaking of Plus models, scratch-resistant sapphire covers might be in the works, but they may only be fully realized if drop test issues are resolved.

The iPhone 6s is also purported to feature another microphone to boost sound quality and an even better camera with 12 megapixels. AppleInsider earlier reported as well that Apple will be upgrading to A9 processors and 2 GB of RAM.

One of the biggest selling points of the iPhone 6s, according to Kuo, will be Force Touch input. It poses a potential bottleneck in the supply chain, but if Apple is able to figure out how to address that problem, it will be able to offer dramatically richer user experiences on the new iPhone. There's room to expand in the commercial market, and something as simple as supporting handwritten signatures could be highly advantageous.

On a related note, Kuo also claimed that Apple will be improving its Touch ID sensors, providing users, particularly those relying on Apple Pay, with more security.

As for screen sizes, he maintained that Apple will not be releasing a 4-incher this year. Instead, iPhones will be sticking to 4.7- and 5.5-inch displays.

There was no word though on how much the iPhone 6s will potentially cost.

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