As We Charge in 1hour 30 min in use of 4-5 hours battery gonne

S7 Edge Getting So Much Of Battery Draining Issues After Android N Update Suddenly I Have 3 S7 Edge and they are facing the same problem !!!SAMSUNG DO SOMETHING FOR US WE HAVE INVEST OUR MONEY FOR YOUR TRUST AND SERVICE!!!

Will S8 have 4k display and snapdragon qc3.0 and dual cameras and 90% body to screen ratio this are the fake news or really s8 will have some kind of this features And Tell me how much RAM Or Storage

and also when the official launch of nought update for s7 edge SM-G359FD