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Under-display fingerprint scanners were supposed to be great. Just put your finger on the touch screen like you would anyway, and a built-in sensor unlocks the phone. That was the dream, but in reality, they’re worse than the alternatives.
IPhones that use Face ID have a different physical design than iPhones with Touch ID, and it can determine how you use features on your phone. Here’s how to tell the difference—and a list of which iPhone models use Face ID.