How does Touch ID (or any mobile thumb scanner) work?

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Is there something underneath the home button or is the home button the scanner itself? How does the scanner identify and save your fingerprint without the green light other fingerprint scanners have?

In: Technology

2 Answers

Anonymous 0 Comments

Optics – when you record the fingerprint it’s capturing multiple images at various angles which it then compares for matches when asked to unlock.

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