Samsung Galaxy S10 5G is the group's most expensive and most feature-packed. In addition to its 5G chops, the phone is also the only one in the series that has a ToF sensor, both on the front and the back. While ToF sensors can work wonders for portrait mode with the main camera module, they can also enable real-time 3D face scanning.
Unfortunately, when the Korean giant first launched the 5G variant of its flagship, it did so without much fanfare about the ToF sensor and the possibilities it can unlock. Well, the company has finally come around to enable some of these futuristic possibilities and, as discovered by @TEQHNIKACROSS, the Galaxy S1
Can finally use the ToF sensor smarts, the phone can now use an IR beam to map your face in 3D with the time it takes for the light to be reflected back (for example, the light from your nose will have a shorter "flight time" "because it is closer to the camera). This data can then be used to identify every dick and wrinkle on the face in real time, allowing for a much safer experience than face locking with just a regular front-facing camera. As such, the camera can't be fooled by a 2D image of you either. Of course, there are still ways to get around these more advanced facial recognition methods, but it's definitely a step up from what you had before.
Unfortunately, since this is a software upgrade, it requires that you have One UI 2.0 on your phone to work. Samsung is currently testing the beta version in Korea. Hopefully, it will roll out the same in other regions soon.