That being said, clearly there are some doubts and concerns over the effectiveness of Face ID, especially with regards to privacy, which is why Apple has since published a whitepaper that explains how Face ID works, and potentially addresses some privacy concerns that users might have when using the feature.
Apple also goes into detail and explains some of the technology behind Face ID, and how it is able to recognize your face and how it keeps itself relevant over time as your face and facial features might change with age. “To improve unlock performance and keep pace with the natural changes of your face and look, Face ID augments its stored mathematical representation over time. Upon successful unlock, Face ID may use the newly calculated mathematical representation — if its quality is sufficient — for a finite number of additional unlocks before that data is discarded.”
It is an interesting read and if you are curious about Face ID and how it works then head on over to Apple’s website for the details. In the meantime the iPhone X is set for a release this November which means that in a few months, we will know whether or not Apple’s latest gamble will pay off.