Have you read reviews (Or experienced yourself) about the galaxy S10 fingerprint sensor under the display? Some [Both user/critic reviews] are very critical talking about how it’s not really that precise, and it’s not as fluid as the unlocking button on the S10E in comparison.
I havent had the pleasure myself, but few youtubers found that the one+ seven pro was very fast. Jerryrigeverything and unbox therapy, the only reviews i have seen. but of course they dont test from a structured approach, they just say how they experience it from a users POV. They were both very satisfied with the response from the one+7 pro, that was not always the case with underscreen readers.
Still crossing fingers for an underscreen touchID, as I'm getting super tired of hoovering my face over the phone on my desk when at work. The tech is improving, and i still think that Apple would implement it once its perfected.