Apple iPhone 6S
TrendForce research claims the new iPhone 6 and 6 Plus will come with newer features like 2GB RAM, slimmer design, and more. Reuters

Apple is reportedly sticking to the S edition for its iPhone release date plans this year, but the device or devices that the tech giant will unveil are nonetheless exploding with huge hardware and software upgrades.

Ming-chi Kuo of KGI Securities revealed in a research note this week that at least 11 major revisions are planned for the next iPhone, more notable of which are tougher casing, a much-awaited camera step up and higher RAM provision. The leaked specs summed up into one thing – what gets unboxed later in the year is far from incremental. It will be an entirely new iPhone 6S.

But beyond the hardware that Apple will stuff on smartphone frames of 4.7-inch for the regular model and 5.5-inch for the phablet-size iPhone 6S Plus, the spotlight will be trained actually to the software that will fire up all these components into life. Taking the center stage is iOS 9, Forbes said in a report.

Making the difference

It is the iOS 9 that will redefine the 6S and 6S plus from their predecessors, the publication suggested. For instance, the tight hardware-software integration that is the Apple device hallmark rendered mobile computing in the iPhone 6 fast, smooth and stable despite the device having only 1GB of RAM. Kuo predicted that 2GB RAM is on the way for the 6S so there has to be major recoding in the works for iOS 9.

The idea is to make the iPhone 6S and its supersized sibling, the 6S Plus, the compelling upgrades that Apple depict them to be. If indeed the 2015 iPhones are the beauty and the beast that Kuo pictured them to be then these toys better deliver on “exciting and more demanding features,” Forbes said.

Per the KGI forecast furnished this week, Apple will ship 90 million new iPhones by the end of 2015, the bunch expectedly headlined by the 6S and 6S Plus. Ideally, the iPhone maker would want to immediately clear out all these units within the same quarter like it did in December 2015 when the iPhone 6 bannered more than 74 million new iPhone buys.

Now replicating or even exceeding that record is not really mission impossible. Apple will only need to deploy the next iPhone with fresh killer features that are exclusive to iOS 9. Rewriting the software to finally handle multitasking and advanced gaming, among other feature upgrades, would perhaps make the upcoming iPhone duo simply irresistible and leave the Apple cash register ringing ceaselessly, the Forbes report said.

Eventually all these guessing games would start getting answers in the months ahead. For iOS 9, a comprehensive preview is likely forthcoming via the Worldwide Developers Conference or WWDC this June 2015. The iPhone 6S and the 6 Plus, on the other hand, are likely scheduled for a release date in September later this year.

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