Create you very own wallpaper to fit on your Galaxy S10 Infinity-O Display and you could win a pair of AKG N60NC headphones!
Find out more here
With my new phone S9+
How can i take a screenshot (YouTube thumbnail) of these sizes
The perfect YouTube thumbnail size is 1280 x 720
Have you thought of editing the picture you intend to use in something like Photoshop Express (free download from Play Store) It has a setting for Youtube Thumbnail.