Screen size, resolution and quality are some of the most important features to consider when choosing a smartphone.
Samsung Galaxy S6's 24 Super AMOLED and Samsung Galaxy S7's Super AMOLED screen have exactly the same LCD size of 5.1" so we don't have a winner here.
Besides comparing the LCD sizes, another specs that we find useful to compare is the ratio of screen area to total surface area of the phone (screen area/total surface area).
Samsung Galaxy S6 and Samsung Galaxy S7 have exactly the same display coverage of 70%- so we don't have a winner here.
Screen size is only one side of the story, resolution is as important in most cases.
Samsung Galaxy S6 and Samsung Galaxy S7 have exactly the same pixel density -576ppi- so we don't have a winner here.