I’m going by results on the 6s thread. Yes, heavy usage was bad because the battery size was too small. Obviously any iPhone with a larger battery will obliterate it, especially the 14 Pro Max on its original iOS version, but 7 hours is a quarter of Apple specs. A 6s might’ve gotten 4 hours with heavy usage on iOS 9, maybe even a little less, but a 6s can’t get 12-16 hours. Comparatively speaking, it’s worse. Of course a direct comparison is pointless: A 14 Pro Max will obliterate a 6s, regardless of the 6s’ iOS version.
I’m not talking about sheer hours, but rather about proportions. Sheer hours? You’re right! High brightness camera use on my 6s on iOS 10 drops it to 50% in about two hours of usage. There’s no way a 14 Pro Max gets two hours, but that’s about as heavy of a usage I can muster. Assuming I can get to about 3.5 hours on a full charge on iOS 10, a lighter usage charge gives me 7.5-8 hours. Percentage-wise, that’s about 45%. Apple quotes 29 hours on the 14 Pro Max. Assuming real-world maximum potential is a little lower than that, just to be fair, 7 hours is about 25% of that. Comparatively speaking, it’s worse.
Excluding this fringe case scenario, like I said, more mixed heavy usage on the 6s, proportionally speaking, is even better, even if it’s abhorrent on absolute terms. In my tests, it seems to be about 60%. On absolute screen-on time numbers? Far worse, even on iOS 10. Percentage-wise? Significantly better, and that was my point.
And that’s on the 6s. The 6s Plus was even better, its larger battery coupled with iOS 9 or 10’s more efficient battery consumption would produce an even better ratio.
