Samsung announced the highly anticipated Galaxy S9+ on Sunday with dual cameras - the first having a variable aperture for different scenes, the other being the well-known telephoto shooter from the Galaxy Note8. While in Barcelona, we decided to put the Samsung flagship against the most powerful Apple phone - the iPhone X. From a technical standpoint, the primary cam can go either f/1.5 or f/2.4 and nowhere in between. It is 12 MP with a 1/2.55" sensor size and with the already familiar DualPixel technology for bright and vivid images. The second one has the same amount of megapixels but...
Source: https://www.gsmarena.com/samsung_galaxy_s9_plus_apple_iphone_x_shootout-news-29851.php