Hmm, that doesn't seem any better than my S5. I can do 5 hours easily.
Did you guys disable/turn off bloats? I turned off ton of carrier and samsung bloats including s-voice and samsung link platform.
On average I'm getting around 6+ hours on screen time.
I seem to be doing better than most. I'm getting 5.5 to 7 hours screen time with 18 to 22 hours all together. I'm running with location ON & I watch a lot of YouTube. I have my screen brightness about 50% & it seems to make a difference compared to My usage breakdown was showing screen using 44-46% of my power with brightness at 80%. Now it's 31-33%.