Even though face unlock has been a part of Android since Ice Cream Sandwich, several Android manufacturers have been working on improved versions over the past year, mostly in response to the iPhone X. The ill-fated Note7 had an iris scanning feature, the OnePlus 5T includes face unlock, and the Galaxy S9 has a hybrid of the two features. Starting with the next Android release, it might be easier for OEMs to add iris scanning to their devices.
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