*Display Size : Measured diagonally, the Galaxy S9 screen size is 146.5mm (5.8”) as a full rectangle and 143.3mm (5.6") when accounting for the rounded corners, the Galaxy S9+ screen size is 158.0mm … The Galaxy S9 apes the iPhone’s 3D Touch feature on the home screen, allowing you to long-press an app and have a selection of items pop up – be it playlists on Spotify, most-contacted … Viewport Dimensions Looking for a specific device’s viewport size? Depending on both the browser and the user’s zoom settings, all mobile devices in responsive web design relate to a specific CSS width (known as “device-width”). Find your phone screen … Unsurprisingly, the Galaxy S9 and S9+ don't mark a big departure from last year's models, design- and size-wise at least, with the new S-series flagships sporting almost the same bezel-less … While this boost of over 13% will be countered somewhat by the step-up in screen size, it is worth noting the 6.2-inch Galaxy S9 Plus had dramatically better battery life than the Galaxy S9 … After reviewing both the 6.2-inch Galaxy S9+ and the 5.8-inch Galaxy S9, we think the S9+ offers enough extra features and performance to justify its higher price tag.