Sapphire is one of the most scratch proof materials available, and the latest speculation includes the use of sapphire on the home button of both the HTC One 2 and the LG G3. That could mean that both rumored flagship models will come with a fingerprint scanner in the home button. The HTC One max is available with a fingerprint scanner on the back, one that requires the user to swipe a finger over the screen. The Taiwan based manufacturer could decide to switch to a scanner similar to the one on the iPhone 5s, that doesn't require the user to move his finger. Additionally, a rumor popped up last week, stating that Korea based LG would employ a fingerprint scanner on its next flagship phone.
Thanks Anonymous Tipster!