Fingerprint sensors, for example, have progressed to being embedded beneath the display; we've listed some of the best smartphones with in-display fingerprint sensors that unlock quickly.

This update to Samsung's flagship phone has every feature under the sun ... include the quad-HD display, 3 GB of RAM, 5-megapixel front camera, and touch-style fingerprint sensor.

In the past, I sometimes struggled with accuracy issues on capacitive-based sensors, but modern under-display readers pose no such issues in my experience. Optical fingerprint sensors -- and ...