Even though the Galaxy S10 and S10 Plus are far from being released and will likely hit the market sometime in Q1 2019, the Korean media, The Bell has some interesting info regarding Samsung's future flagship devices. According to sources, Samsung is going to ditch the iris scanner leaving the rumored Note9 to be the last Galaxy device to offer the tech. We guess that not many tears will be shed over this fresh information as the Samsung's current implementation of the iris scanner isn't exactly the most efficient way to unlock your phone. Apple's Face ID is far more accurate and faster...
Source: https://www.gsmarena.com/galaxy_s10_to_ditch_the_iris_scanner_for_an_indisplay_fingerprint_and_facial_recognition-news-31820.php
