Galaxy S6 -vs- Iphone 6 Battery LIfe Comparsion from FULL TIME USER HD

I had used both my Samsung Galaxy S6 and Iphone 6 for months now. Every month I switched these phones for full time usage. The S6 takes about one hour and ten minutes to fully charge from 0 to 100% using the power cable. My Iphone 6 takes about 1:50 to 2 hours. With battery life my S6 lasts about 10 hours and my Iphone 6 last about 8 hours. Plz take note that I use my phone every single day like my life depends on it. I work from my phone as well. Again this is my comparison as a full time user from both of these phones. I love both of these phones and still cant figure out which one i prefer. Even though the battery life is better on the S6 I feel the photos on the Iphone 6 rarely lets me down and the shutter speed is a litle more reliale then the S6. Anyway I just preordered the Iphone 6S and hoping the battery life would surpass the Iphone 6. Thanks for watching and any subs would be appreciated.