How Apple’s Touch ID FingerPrint Sensor Works


Apple’s new Touch ID FingerPrint Sensor technology comprise of the most advanced software and hardware ever used in any device. Apple is the first to use this FingerPrint Sensor technology which uses human fingerprints to unlock iPhone 5S handsets with a single touch. 

Now its time to say goodbye to pin codes or swiping to unlock, and fingerprint scanner will gonna take place of these features. Fingerprint scanner features a sapphire crystal overlay that not only protects the underlying sensor, but works as the lens.

The scanner basically captures an extremely high resolution image i.e the sub-epidermal layers of your skin at 500 pixels per inch, which the software uses to detect and analyze specific micro points in the print and identify the user.


You must have a question that if you lost your iPhone and someone tries to access your phone may be by chopping off his or her finger and placing it on the scanner, then what will happen. Don’t worry it will not gonna happen as The Wall Street Journal points out that modern scanners look for vital signs, in this scenario, a severed finger would be useless.

Touch ID is deliberately designed to minimize the fuss and hassle necessitated by smartphone security. You can place your finger in any direction and scanner will read an assortment of fingerprints from the user. The accuracy of Touch ID progressively improves over time. And users can use password or pin if somehow Touch ID fails. 

The company made a point of emphasizing that the fingerprint data is not only encrypted, but stored in a secure, separate area of the A7 chip that’s walled off from all other software. Neither Apple servers nor other mobile apps can access it.
Watch features and fingerprints images screen in the below video:

iPhone image courtesy of Apple.


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