Said Galaxy S7 renders were revealed by case maker ITSkins, and show a device that largely resembles the regular Galaxy S6, with one noticeable differences: the home button is now rectangular, and doesn't have the rounded shape of the home buttons included on the Galaxy S6 family. Reportedly, the Galaxy S7 measures 143.37 x 70.8 x 6.94 mm, being just about the same size as the Galaxy S6 (143.4 x 70.5 x 6.8 mm), though a hair thicker. The rear camera bump is there to stay, and so is an accompanying LED flash, plus a heart rate sensor. If these dimensions are correct, the Galaxy S7 certainly sports a 5.1-inch display, like its predecessor.
More interestingly is the fact that, allegedly, there's also a Galaxy S7 Plus handset that measures 163.32 x 82.01 x 7.82 mm. This means the S7 Plus is larger than the 5.7-inch Galaxy S6 edge+ (154.4 x 75.8 x 6.9 mm), being about the same size as the 6-inch Galaxy Mega 2 (163.6 x 84.9 x 8.6 mm). Thus, we can assume that the Galaxy S7 Plus sports a 6-inch display.
Of course, for now there's no way to verify the details presented above. Samsung will likely announce the Galaxy S7 and Galaxy S7 Plus in February during MWC 2016. What do you hope to see from the S7 series?
source: ITSkins (renders removed) via GSM Arena