You think they haven't? Lol. Competitors have been using facial recognition for a while also, but Apple's take on it is the best one (yet) and the most secure. The same will be with under glass touch ID.Haha, I wonder why it would it will take Apple that long to implement finger touch ID on-screen while competitors already have it.
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This is actually a clever way to secure the phone. I hope Apple has thought of this and somehow can surprise us by adding this feature. But also, Face ID can do the same, but I guess it would use more power.Attention Aware is periodic, it only scans after a period of inactivity. Fingerprint allows for scanning at every interaction. The phone can lock the moment someone else grabs and taps the phone.