how long has the s7 edge been out
Samsung Galaxy S7 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.[5][6]
Samsung Galaxy S8 The Samsung Galaxy S8, Samsung Galaxy S8+ (shortened to S8 and S8+, respectively) and Samsung Galaxy S8 Active are Android phablet smartphones (with the S8+ being the phablet smartphone) produced by Samsung Electronics as their eighth generation of the Samsung Galaxy S series. The S8 and S8+ were unveiled on 29 March 2017 and directly succeed the Samsung Galaxy S7 and S7 edge, with a North American release on 21 April 2017 and international rollout throughout April and May. The S8 Active was announced on 8 August 2017 and is exclusive to certain U.S. cellular carriers.