LG G8s ThinQ revolutionizes the way you unlock your smartphone by first recognizing your palm, or Hand ID: you don’t need to touch the phone, it’s immediate and guarantees a high degree of reliability and security.

A new way to unlock your smartphone

Even if we don’t always realize it, we watch our smartphone almost 150 times a day, on average every seven minutes, to check notifications, read or send messages, take a picture, listen to music or just watch the time and date. To give you immediate access to the main information LG has introduced, for some time, the Always-on display that shows the time, date, if you have received notifications and the status of the battery. Earlier, to make immediate the release of the phone LG had introduced the double touch, able to “wake up” the smartphone by simply touching the screen twice. This solution is as effective as it is ingenious, but it is no longer sufficient compared to the levels of security necessary to protect our data from prying eyes.

nlock your smartphone by first recognizing your palm, or Hand ID

Unlock the smartphone biometric parameters

The ways to unlock a smartphone today are different, ranging from the simplest ones like the Sequence, the PIN and the Password, to which is added the Knock Code, or the sequence of touches in different points of the screen, up to the biometric ones, which they exploit unique elements such as fingerprints, the appearance of the face and – for the first time ever thanks to the new LG G8s ThinQ – the map of the veins of the hand.

Unlocking the smartphone with the Flight Time Camera

LG G8s, in addition to raising the quality standard of facial recognition, now much more reliable and working even in the dark, introduces for the first time the Hand ID, the recognition of the palm of the hand , as an option to unlock the smartphone. The secret lies in the new ToF sensor (Time of Flight, which translated literally means Flight Time) integrated into the front of the new LG G8s next to the camera.


This special sensor is able to recreate a dot matrix (a sort of virtual lattice) that identifies the three-dimensionality of what it frames: now face recognition is much more reliable and it is not possible to “deceive” it even with a good photo. In addition to this innovative sensor, LG G8s also integrates an infrared emitter that allows it to be effective even in the dark and to exploit the different refraction of blood hemoglobin, thus tracing a map of the veins of our hand: another of the biometric data which distinguishes us as the fingerprint.

How it works technically

The operating principle of this type of sensor is quite simple: an emitter, usually an infrared (IR) LED, projects modulated light. This light is not visible to the naked eye, we are in the infrared range, about 850 nm, but it bounces off the objects it encounters.

The light emitted by the emitter is usually a square wave, and by reading the phase shift between the transmitted wave and the received one (the so-called Flight Time) one can understand the distance of the single points of the received image. The resulting map is combined with the reading of the main chamber to create a small, extremely realistic 3D model.

Simple and intuitive

The operation is very simple, just follow the procedure that memorises the veins of our hand, in a very similar way to how it is done with fingerprints and with facial recognition:

  • 1) place the palm of your hand 15-20 cm away from the front camera;
  • 2) slowly lower your hand and follow the on-screen instructions until the palm is scanned correctly;
  • 3) you can repeat the procedure with the smartphone resting on a floor or while holding it with the other hand to simulate different conditions of use of the Hand ID.
  • Once you have memorized the vein map of your hand, you can unlock the phone simply by placing the palm on top of the camera, without even having to touch the phone.

You can then unlock the phone even with dirty hands or without having to interrupt what you are doing: thanks to the recognition of special gestures it will also be possible to answer or reject a call, adjust the volume of your music player, capture a screen and much more.

Your data safe

The data of your hand is used exclusively for biometric recognition, or to ensure that you are the real owner of the smartphone, they are saved only on your phone in a special protected and encrypted area and are in no way transmitted in the cloud, so you can rest assured that no attacker will have access to it. Reading through infrared is also not able to detect data on blood or any illness, your privacy, even in this case, is guaranteed.