The iris scanner, the heart-rate monitor and Bixby in its current state exemplifies what's wrong with Samsung's approach to mobile. It's the endless array of features, useful or not, that Samsung throws at its phones. It's the hope that simply doing more makes the S8 better than the competition.
A super-fast, frustration-free phone for everyday use; Stunning design and build quality; Sharp edge-to-edge screen puts the focus on content
Extremely low-light camera performance in auto needs improving; Iris scanner is hopelessly fiddly; Bixby is incomplete and can't compete with Google Now and Assistant