Samsung to introduce Galaxy S21 smartphones with new fingerprint scanner, leakster Ice universe claim (en. The under-display sensor was initially introduced with the Galaxy S10 and later made its way to the Galaxy S20, but will now be much faster and significantly larger.
The sensor under the OLED panel will be square, with 8mm sides, so it will be 64mm2. For comparison, the two previous flagships had 4x9mm sensors, which is 36mm square, a powerful 77% increase, coming in on January 14.
When Samsung first introduced the UD solution in February 2019, it was riddled with problems. It only worked with select screen savers, allowing unregistered fingers to unlock the device. The situation was so bad that Samsung had to issue a solution a few days after the market launch.
Hopefully this situation will not repeat itself and we will have a bigger and faster sensor. The leaker claims that you will only need a quick tap instead of an actual long press, cutting the unlock speed in half, which would be a huge improvement for everyday usability.
