Apple covered the sophistication of Face ID in some detail during this week’s launch of the iPhone X, showing that it worked with make-up, hairstyle changes, hats, scarves and glasses. But questions are still being asked, and Apple has answered a couple of them.

Just as Face ID works with normal eye-glasses, Apple’s SVP of software engineering Craig Federighi confirmed that it works with most sunglasses – even ones which appear to be opaque from the outside …

more…