One prototype has no fingerprint sensor, seen in the video above, while the other, a front facing scanner below the display seen in the P20 render video below. (mobilesyrup.com)
It will use either the more - secure iris scanner or the quicker - but - less - secure face scanner, depending on the lighting conditions you're in. (theverge.com)
MORE: Gorgeous Galaxy S9 Could Look Like This Rumors have been swirling for months over whether Samsung would offer a 3D face scanner in the Galaxy S9, like the Face ID you'd find in an iPhone X. (tomsguide.com)