iPhone 5S fingerprint sensor: sapphire used for home button

http://bgr.com/2013/08/12/iphone-5s-fingerprint-sensor-sapphire/ / iPhone high-end device Apple iPhone 5S new research note KGI Securities analyst Ming-Chi Kuo scratch proof scratch-proof sapphire crystal iPhone 5S home button double fingerprint sensor Kuo plastic sapphire home button fingerprint sensor smartphone manufacturers material durable smartphone displays display fingerprint sensor device device’s functionality, Apple experience material currently sapphire crystal iPhone 5 protect handset handset’s rear camera /