When the first developer preview of Android N was released a few weeks ago, one of the features we noticed first was the ability to adjust screen DPI. In essence, this display scaling feature allows users to change the size of icons and text across the entire user interface.
While they don’t run Android N yet, the Galaxy S7 and S7 Edge also have a similar feature baked in to their software. Until recently, the only way to access the option was to install Nova Launcher and add a quick-action ‘DisplayScalingActivity’ widget. Thanks to the most recent software update though (as noted by SamMobile), it’s now part of the display settings options.