The ULTIMATE Fingerprint Scanner SPEED Test.

Its in-display fingerprint scanner is a cool feature but was clearly the slowest and least reliable, so it's not quite there yet.

Rear scanner is easy to reach, but it finished fourth and its unlock animation is not the snappiest.

Fast enough scanner that is middle of the pack, but the flat front sensor can't be found by feel.

Second fastest and quicker than the S9+, but there is a delay between scanning and the display turning on.

Won the test with Touch ID that guides your hand into place and unlocks very quickly, which impressed him.