Alleged Galaxy S9 health app screenshot reveals a new finger scanner position

This is certainly a better solution than having to reach across the camera lens to use the scanner on Samsung's 2017 flagships, risking smudges, at least in the beginning while you are getting used to it. The fingerprint reader on this screenshot here seems to be right where it belongs, in the middle of the back, though it's still not big and round, so there could be a learning curve until one hits the exact index finger stretch amount needed to hit it without fingerprinting the camera lens.

source: Keyforweb.it (translated)