Fun-size Galaxy S10 reader hints why finger scanning could be hit or miss (teardown)
One of the most interesting new features that come with Samsung's fresh-out-of-the-oven Galaxy S10 family is the presence of an in-display finger scanner biometry. It is a second generation one, arguably for the first time in a commercial phone, and is pretty good though not on the level of touch scanners that are not embedded in the screen judging by our time spent with them.
We did enter the fingerprints as required by Samsung's guidelines, but when we started using the reader, it couldn't easily detect our fingers, especially at the angle that the big Galaxy S10+ requires when you are holding it with one hand. Some of us had to push the phone upwards, balance it on the pinky, and only when we placed our thumbs parallel to the frame were we able to quickly unlock the phone. Live and learn.