3 Face ID Doesn’t Always Work
Touch ID isn’t perfect — it doesn’t work with wet fingers or when using gloves. But while Face ID may be an improvement, it isn’t quite perfect itself. The normally seamless system can be derailed by certain articles of clothing or harsh environmental light.
But with multiple authentication systems, you wouldn’t have to resort to typing in your passcode to get into your device. Face ID fails? Just rest your finger on the in-display sensor and your phone will unlock. That could also be incredibly handy for those rare scenarios when Face ID fails multiple times.
Despite certain comments it has made, Apple has actually even considered a similar system itself. A recent patent includes passages and diagrams hinting at Touch ID being available as a backup if Face ID fails. If Apple is thinking about this, it should make it happen in a future iPhone.