HONOR 50 - Fingerprint under display

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The mid-range model of the HONOR house, the 50, mounts a fingerprint detector under the display; a solution that, for about a year, a little more a little less, has been adopted by the manufacturers for the top models.

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As we all know by now, fingerprint recognition is used not only to unlock the phone but also to authorize payments, digital identity recognition and more.

In the phone I used until recently, the sensor was of the capacitive type and was positioned behind the phone; I must say that in almost three years of use it has never given any kind of problem (I'm talking about the HONOR 9 Lite).

The 50 instead mounts an optical sensor.

With this solution, the device gains in aesthetics as it remains more "clean", but also the activation of the release gains as the pressure of the sensor being on the screen is easier to reach.

Optical sensors are much easier to understand because they use a simpler method of enrolling the smartphone owner's fingerprints: they take pictures of the fingerprints.

The sensor illuminates the fingerprint with a small LED light, then a camera takes a quick snapshot capturing the light and dark areas that respectively denote the ridges and valleys of the fingerprint.

A disadvantage could be, for example, a scratched tactile surface or a dirty finger can cause non-recognition of the fingerprint. Furthermore, a photo of our finger could fool the sensor.

EXPERIENCE OF USE

In the HONOR 50 (without protective film) I have not encountered any kind of problem; the phone is unlocked immediately with the pressure of the finger even if it takes a few tenths of a second longer than the capacitive sensor.

The only drawback, I would have positioned the sensor slightly higher.

Let's see how it works