Liquidmetal is still on the cards, though. Apple has an exclusive license to the material, but currently only uses it for the SIM-removal tool, despite its desirable qualities such as durability.
In January, rumours began surfacing about a 3D pressure sensor for the iPhone 6S's display, which could mean that Apple is planning to bring the Force Technology that it uses in its Apple Watch to enable the iPhone 6S to differentiate between a tap and a press, which could provide an interesting new way to interact with the smartphone.
iPhone 6S rumours: Camera
Rumours that emerged in November 2014 suggest that we should expect great things from the camera in the next generation of iPhone. In fact, the claim is that the iPhone 6S's camera will represent the biggest camera jump in the history of the iPhone.
The rumour comes from reliable blogger John Gruber of Daring Fireball, who said on a podcast that his source claims that the iPhone 6S's camera will have a two-lens system that could help allow users to capture "DSLR-quality imagery."
A new rumour that hit the web in mid-January also suggests big improvements are coming to the camera in the iPhone 6S. Chinese website United Daily News says that Apple's iPhone 6S will have a dual-lens camera that offers optical zoom capabilities. The aperture is likely to improve, too.
iPhone 6S rumours: Processor
It's highly likely that the iPhone 6S's processor will be named the A9 processor, following on from the already powerful, 64-bit A8 processor. It'll be joined by the M9 co-processor, which handles efficiency by taking all of the jobs carried out by the sensors away from the main processor.
The A9 is rumoured to be being manufactured by Samsung, which is apparently in talks with Apple about becoming the sole manufacturer of its chips, a role it once had before the responsibility was handed over to the Taiwan Semiconductor Manufacturing Company (TSMC).
The A9 chip is believed to be being manufactured at Apple's Austin factory, so the processor could be a 'Made in America' component, according to the Korean Electronic Times.
TechNews believes that the iPhone 6S will have 2GB or RAM rather than 1GB found in the iPhone 6 and iPhone 6 Plus, which could indicate that iOS 9 will have better multitasking features that would be possible thanks to the extra memory. It's something we've been hoping for for some time now, but it's possible that it'll mean an unwanted price bump for the iPhone 6S.
iPhone 6S rumours: Gaming joystick Home button
This rumour is a bit out there but is completely justified as it comes from Apple itself. A recently discovered Apple patent reveals that the company is considering turning the iPhone's Home button into a gaming joystick.
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