Please bring back iris scanning.
Iris unlocking is faster than facial recognition, more secure, works in the dark, regardless of wearing a mask, and usually regardless of wearing glasses.
Facial recognition does not work in the dark, or if wearing a mask,
Fingerprint recognition does not work with dry skin or gloves.
Dropping iris scanning is like getting a new 70" smart TV in 2021 that only supports 1080p. If people weren't using it, it's because they didn't know about it.
By the way, I did search for any previous post on this, and didn't find any. The site does not allow searching a specific forum, only everything, and did not allow only showing results with all keywords. All the results I found were for other models.
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Since iris scanning doesn't mix well with sunglasses, some regular Rx glasses, and some contacts, there are large swaths of the world population that couldn't use iris scanning easily 100% of the time. Plus numbers of the complaints about eye discomfort. Samsung must have decided continued investment wasn't worth it WAY back between the S9 and the S10.