Well I've never really understood how people get the battery life they do. However my company uses Google Apps for business and my Gmail is constantly sending me emails so I suppose that could have something to do with it.
Most of my time is spent using Gmail, text, Facebook, reading the WSJ or Feedly, forums like this one and some light browsing. I don't play games on my phone. Ever. Never.
Music rarely.
Very little video at all.
Probably average an hour of talk time in an average day.
And if I can get 10 hours with 3.5 SOT I'm lucky. Usually it's less than that.
Then I'm sitting here in the airport and understanding that I am on this thing now for the lady 90 minutes almost non stop. I pulled my phone off the charger 2.25 hours ago and down to 82% so it makes sense.
At least starting to for me.
My iPhone 6s+ wouldn't drain at all when the screen was off. But when I used it like I am now I felt like it drained faster. Difference I think is it has a bigger battery and lower resolution so I would go 10-12 hours without a charge on that doing what I am doing on this and I'd have 15-20% battery left over.
Yesterday I went from 9am to 940pm and it was down to 5% and that included a 2 hour plane flight in airplane mode.
Tough to analyze it all.