The iPhone 5s fingerprint reader: what you need to know
So Apple has announced that it’s building a fingerprint reader into its new flagship smartphone, the iPhone 5s, calling that technology Touch ID. Here’s what you need to know about it.
How does Apple’s Touch ID fingerprint sensor work?
There are a few different fingerprint-sensor technologies out there, with optical and capacitance readers being the most common.
Optical readers take a picture of your fingerprint with a digital camera. Apple chose a capacitance reader, which is far more interesting.
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