Is Motorola moto X40 an ultrasonic fingerprint

Fingerprint unlocking is one of the configurations that almost all smart phones will choose to carry now. It is more convenient and safe than ordinary password unlocking. But now it is also divided into several different fingerprint unlocking methods. The most important is optical fingerprint unlocking and ultrasonic fingerprint unlocking. Is Motorola's new Motorola Moto X40 ultrasonic fingerprint?

Is Motorola Moto X40 an ultrasonic fingerprint

No, this mobile phone uses fingerprint unlocking under the screen

Advantages of optical fingerprint identification technology: low cost, low purchase price of parts and components, less internal circuits, easy to stack inside the fuselage.

Disadvantages of optical fingerprint identification technology: OLED screen has aging problem, and the fingerprint information collected by optical fingerprint identification technology needs to be transferred to the sensor below through the screen pixel gap. If the OLED screen is aging or there are stains and water stains on the fingers and screen, or in the sun, the unlock recognition rate will be greatly reduced. A more obvious example is that the unlock speed is greatly reduced after the film is pasted. In addition, since the 2D fingerprint information is collected, it is not difficult to forge fingerprint unlock.

Motorola Moto X40 still uses the common off-screen fingerprint unlocking method. Although it's a pity that it can't be unlocked with ultrasonic fingerprint, the ultrasonic fingerprint unlocking also has some disadvantages. For example, sticking a thick film will affect the recognition and so on. So if you don't just need it, you shouldn't care about it!