<Tr> <Th> Front camera </Th> <Td> Samsung S5K4E6 5 MP, f / 1.7 aperture </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.samsung.com/global/galaxy/galaxy-s7/ </Td> </Tr> <P> Samsung Galaxy S7 and Samsung Galaxy S7 Edge are Android smartphones manufactured and marketed by Samsung Electronics . The S7 series serves as the successor to the Galaxy S6, S6 Edge and S6 Edge+ released in 2015 . The phones were officially unveiled on 21 February 2016, during a Samsung press conference at Mobile World Congress, with a European and North American release on 11 March 2016 . </P> <P> The Galaxy S7 is an evolution of the prior year's model, with upgraded hardware, design refinements, and the restoration of features removed from the Galaxy S6, such as IP certification for water and dust resistance, as well as expandable storage . As with the S6, the S7 is produced in a standard model with a display size of 5.1 - inch (130 mm), as well as an Edge variant whose display is curved along the wide sides of the screen . Unlike the S6, the S7 Edge also utilizes a larger 5.5 - inch (140 mm) display rather than matching the screen size of the base models . The Galaxy S7 and S7 Edge are the last two phones in the Samsung Galaxy S series to have a physical home button with a front - sided fingerprint sensor embedded in the button . </P>

How long has the s7 edge been out