I have the S9 for personal use and face and iris recognition works only full frontal face, in certain lighting conditions and only without my spectacles. I have to contstantly use fingerprint recognition which works almost all the time. I have an iPhone XR for work and the face recognition works with/without spectacles and with/without a hat and from different angles. It blocks access from my sons. I would love the S9 to be as good.
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