Face ID not working when you're wearing Sunglasses? Here's the fix!
I'm loving Face ID on the iPhone X and I've got to say it works a lot better than I thought it would, except for when I'm wearing Sunglasses. Even though Apple says it should work, there are some sunglasses out there that are too dark to let Face ID's infrared beams penatrate to see if your eyes are paying attention.
Luckily there's a really easy fix.
Go to settings and tap "Face ID & Passcode"
Toggle the switch "Require Attention for Face ID"
There - Done. Try it out!