Samsung is not coming with two size variants of Galaxy S7, there’s one more which is named as ”plus”. As per the GSMArena, Samsung is going to simplify its Galaxy S7 lineup by introducing the three different sized variants.
To ease the choice between the different variants, Samsung is expected to introduce three versions of Galaxy S7. The first one and the base version of Galaxy S7 is sticked to 5.1 inch display, second one with curved display, we also call it as “edge” is going to come up with 5.5 inch display, the largest one is “plus” and that is clocked at 6 inch. Galaxy S7+, will have a 6″ screen and will be the only one to have two screen options as expected by the source, ITSKINS.
So it’s kind of speculation before any official announcement. It’s just a little grain of sand, source expected that there might be three versions of the upcoming flagship device from Samsung.