Hexus posted a review on the Samsung launches the Galaxy S9 and Galaxy S9+
A quote from the article:
Incremental updates major on new camera features but there are other niceties delivered. Samsung launched the new flagship Galaxy S smartphones on the eve of MWC 2018. There were few surprises embodied in the new Galaxy S9 and S9+. What was shown on stage, and in the plethora of feature videos, was very much an incremental update on last year's S8 and S8+ models. Samsung's own intergenerational comparison page makes this clear. The greatest design effort seems to have been put into the cameras on the new models, as paid testament by the Nine of the Galaxy S9's Most Exciting Features blog by Samsung (3 or 4 of which are imaging features).Samsung launches the Galaxy S9 and Galaxy S9+ @ Hexus