There are three different versions of the iWatch planned for launch this fall, claims Taiwanese publication the Economic Daily News
. The main distinction is said to be between models with 1.6- and 1.8-inch displays. The latter, though, is expected to come in two forms, one with sapphire coating and the other without.
The paper suggests
that the iWatch may only set the stage for sapphire use on later iPhones. That would contradict recent leaks pointing to sapphire cover glass for the iPhone 6
. Since the material is expensive to produce however, it could be plausible that Apple would reserve sapphire for the top-end model on a smaller product line.