From what I read about the Galaxy S phones - the S7 has some features from the S5 which skipped a generation. Features that I use, like an SD card, waterproofing etc. When I got my S5 (which I'm very happy with) the S6 was new so I could get the S5 at a discount. The last Samsung Galaxy of your approximate size spec is the S5 mini, but that's behind even the S5 for the Android update curve - no, hang on, there's the Galaxy Alpha, which is at about the same place in the curve as my S5.
YMMV, but the S5 is pocketable for me, even with a slightly bulky case.
(no subject)
YMMV, but the S5 is pocketable for me, even with a slightly bulky case.