At first, Samsung was equally agile when on both its flagship phones, the Galaxy S5 and Galaxy Note 4 , had this feature, until now, from low-cost to high-end Samsung. equipped with this fingerprint sensor.
What is fingerprint sensor?
The fingerprint recognition technology works according to the principle: When you place your finger on a fingerprint reader, this device will immediately scan the image of that finger and put it into the system. The system will process the fingerprint, convert it to digital data and compare the features of that fingerprint with the data stored in the system.
If this fingerprint matches the system data then the next functions will be performed. In theory, fingerprint recognition will allow to completely remove all kinds of passwords, but still ensure security when users log into the device.
Apple has integrated this technology on its Home button called Touch ID technology, instead of having to enter a password for unlocking the device or application, now just a light touch is fast. do that. The Home key is designed with a Sapphire stone surface that both protects, and is just a lens that supports the sensor to "capture" fingerprint images on the finger.
The metal rim around the Home key is not only a decorative detail, but also a part that allows you to recognize whether the user's finger has been placed to start the scanner. With Touch ID, long rows of passwords that are difficult to remember and easy to confuse are removed.
Fingerprint sensor technology on Samsung phones
Similar to the function of Touch ID, other brands from big like Samsung or OPPO , Nokia , ... also develop their own fingerprint sensor technology on the latest high-end devices to the most popular. of the company.
Now with one-touch fingerprint technology, most machines from many different brands just need a light touch, the system will recognize your fingerprint and turn on the device quickly and completely accurately.
Advantages and disadvantages of fingerprint sensor technology
Advantages:
+ Unlock device or app with just one tap or flick.
+ High authenticity because each person's fingerprint is unique.
+ Peace of mind because the system will recognize many different fingers. Capacitive sensor technology will ensure that fingerprint images must be taken from a "alive" finger (not cut off).
Defect:
+ Fingerprint sensor is just an authentication system, not playing a role in protecting data on user's phone, when you sleep or lose consciousness, the finger will unlock everything.
Product lines integrated with fingerprint sensor technology
Fingerprint sensor technology has gradually become a criterion for high-end products at low prices because of its convenience. Some products use fingerprint sensors today: