These sensors scans and reads the iris of the human eye. Like Fingerprint sensors, Iris scanners are also used for security purposes. They are used as unlock passwords and for other transaction IDs. These are not as popular as the fingerprint sensors. They are only found in few mobile models. Like we use the face ID and fingerprint, Iris scanner allows you to use your eye as a password. Every human has a unique eye-print. These prints are scanned and stored as a digital password. When it finds a matching ID for the saved one, it allows access to the user.
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