The Samsung Galaxy S7 is a series of Android-based smartphones manufactured, released and marketed by Samsung Electronics. The S7 series served as the successor to the Galaxy S6, S6 Edge, S6 Active and S6 Edge+ released in 2015. The S7 and S7 Edge 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. The Samsung Galaxy S7 Active was unveiled on 4 June 2016, and released on AT&T in the United States on 10 June 2016.