It's one of the most often-rumoured additions said to be making up the iPhone 6's arsenal -- a sapphire glass screen that'd be impervious to many of the scratches and cracks that have plagued previous generations of the phone. At first the material looked a dead-cert for inclusion, but then it seemed as if Apple was having cold feet. The reality, it seems, may be somewhere in between.
According to the Wall Street Journal, some iPhone 6 handsets will use sapphire glass, while others won't. The report suggests that Apple will be introducing an additional premium tier to its iPhone range, with the more costly phones making use of the sapphire material. The reasoning behind this is twofold -- firstly, the yield of the material is relatively low meaning there's not enough of the stuff to outfit the entire range, and its costliness could make the already-expensive iPhone intimidatingly pricey if it were not an optional extra.
Both 4.7 and 5.5 inch versions of the iPhone 6 could end up being offered in this premium configuration, though quantities are expected to be limited. With a production facility now up and running, future Apple products could use sapphire more cost-effectively, with the iWatch likely to be the first Apple device to have it as standard. [WSJ via MacRumors]