It works using the ToF sensor on the front.
What you need to know is that with
one UI 2.0, Samsung enables 3D face recognition on Galaxy S10 5G.
Use the ToF sensor on the front to map your face in three dimensions.
The result is a much safer face unlocking environment that can’t be easily tricked into face photos.
Samsung Galaxy S10 5G is the most expensive and feature rich. With 5G s, this phone is the only one with a ToF sensor on both the front and back. The ToF sensor can be a wonder for portrait mode using the default camera module, but it also allows real-time 3D face scanning.
Unfortunately, when Korean giants first launched the 5G variant of their flagship product line, they didn’t do that with great interest in the ToF sensor and the possibility of unlocking it. Well, the company has finally made it possible for the future and the Galaxy S10 5G discovered by @TEQHNIKACROSS now uses ToF sensors for facial recognition.
Unfortunately this is a software upgrade, so your phone must have One UI 2.0 to work. Samsung is currently in beta testing release tests in Korea. Hopefully, it will be available soon in other regions as well.