There is a way to access this hidden menu, perhaps Samsung intended to activate the setting in a future software update, but if you want your Galaxy S7 to display more content on the same size screen, you can follow these steps to do just that. Download Nova Launcher from the Play Store Long-press an empty space in the homescreen and find the Widgets section Choose the "Activities" widget and place it on any homescreen page Find "Settings" and then pick .DisplayScalingActivity Once the new widget shortcut appears, tap on it Choose between Standard and Condensed Enjoy more overall...
Source: http://www.gsmarena.com/galaxy_s7_has_a_native_dpi_setting_but_its_tucked_away_somewhere-news-17290.php
