New biometric technology from Synaptics combines facial and fingerprint recognition
The multi-factor fusion engine allows users to choose a modality based on preference, or one that is most convenient to environmental conditions such as when wearing gloves. Improved security is achieved by requiring multiple-modes of authentication for financial transactions or other sensitive applications. The Synaptics multi-factor fusion engine combines authentication scores from multiple biometrics to determine verification. This increases overall system security as both fingerprint and facial factors have to meet minimum threshold requirements before authentication. In addition, the fusion engine improves usability as lower individual verification thresholds still result in greater security.
Simply put, if your future handset sports this technology, you would be able to choose which authentication tool to use, but if it's cold outside and you're wearing gloves, your phone would be able to determine that and automatically switch to facial recognition. Additionally, both authentication methods could be required in order to ensure a higher level of security when you issue payments and download apps.
This fusion engine is quite innovative, as the current generation of devices with biometric features rely solely on fingerprint scanning. One notable exception was the Samsung Galaxy Note 7, which did feature both verification methods, but could use only one at a time (not to mention that it got recalled).
via Android Central
Things that are NOT allowed: