Exynos here. You can search benchmark comparison, exynos is better. I am constantly using location based notifications so location/wifi is always on. Yahoo mail, Microsoft active sync and Gmail is always syncing. Google location reporting is off. Facebook, messenger, swarm and twitter constantly syncing. I am following news from Twitter notifications from around 5 sources. Brightness is on aouto between 5 to 10. Also weather notifications. And always use gpu is on at developer options.(they say this increase battery consumption but I prefer my ui smooth)
This gives me around 3 hrs of screen on time on mobile data and 4 to 5 hrs of SoT on wifi, with moderate usage.
I am not satisfied with my battery life. I don't understand how people are getting 6 to 7 hrs of SoT. But I think this is due to shamesung touch wiz. Android system has very large consumption under battery options. Though this varies from day to day, very inconsistent.
I can encourage you to look LG g4.
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