Fingerprint scanners are an essential feature in the smartphone market. Here's how they work and what you need to know about them.

How fingerprint readers work Fingerprint readers come in different types. There are three commonly-used fingerprint reading methods: capacitive, ultrasonic and optical.

With current touch-based sensors, many companies produce devices that fundamentally use the same underlying technology for optical fingerprinting, Garris explains. “When you touch the glass with your ...

Xiaomi's new patent revealed an all-screen fingerprint sensor! This new smartphone display tech no longer needs a touching point.

For comparison, optical fingerprint sensors work by shining a bright light and essentially taking a picture. Google’s first implementation with the Pixel 6 was rough, especially with screen ...

Fingerprint sensors on smartphones like the Galaxy Z Flip 5 can occasionally stop functioning correctly, leaving you frustrated and unable to conveniently unlock your device.

The vivo X80 Pro delivers the best in-display fingerprint sensor experience on the market right now, thanks to speed, size, and more crucial factors.

The Pixel 6 and Pixel 6 Pro fingerprint sensor woes continue. This time it's not a problem with the sensor itself, but issues that can arise if you need a screen repair.