There could be many reasons behind why a person ditch their Samsung S7 Edge in favour of an iPhone 7 / 7 Plus. But, no matter what that reason may be, they primarily care about one thing: making the switch in a way to successfully transfer all their contacts, photos, music, and more from their old phone to the new one.
http://www.youtube.com/watch?v=KMY-3q1ArHA [youtube.com]
Also works with other Samsung Mobiles:
Samsung Galaxy S7, S6 Edge+, S6, S5, S4;
Samsung Galaxy Note5, Note 4, Note Edge;
Samsung Galaxy A5, A7, J7, J5 and more.