The iPhone introduced the World to Face ID in 2017, and now, every new iPhone uses Apple's biometric security system instead of the old Touch ID. It's more secure than fingerprint scanners and it's even more user-friendly. True, it's not without faults, but at least one of the biggest problems can be fixed.
Face-to-face in 3D. If you're wearing shades, this means you can not see through the lenses. Making Face ID Work with Sunglasses
The reason why Touch ID doesn ' t unlock your iPhone when you're wearing certain sunglasses because of the TrueDepth camera's infrared sensors. Although they can penetrate most sunglasses, they are open or closed.
Face ID's attention awareness feature prevents your iPhone from unlocking until it detects your eyes are open and looking at it. IR.
In your Settings go to "Face ID & Passcode," enter your passcode, and scroll down until you see "Require Attention for Face ID. " ”