https://www.cnbc.com/2017/09/27/iphone-x-delays-stem-from-facial-recognition-hardware-snag-report.html

The Apple iPhone X is delayed because of two parts, dubbed Romeo and Juliet, that are used for facial recognition, The Wall Street Journal reported Wednesday.

The iPhone X will sport a feature that allows it to unlock when a user looks at the phone, though it appears it's this compelling new function that has limited Apple's ability to build enough units. It may also explain why Apple will begin taking orders for the phone next month before launching it in November instead of releasing it earlier this month with the iPhone 8 series devices.