If you manually add those minutes up, it is about 7hrs, no where close to the totals shown (13h 29m, or 36h 37m).
Really? OK. Let's go with your totals. Because I actually didn't take out a calculator.
My Note 4 NEVER gave me 7 hours use time and 36 hours off the charger. (Unless you want to argue that there was some time warp where a day and a half actually wasn't a day and a half.). The Note 4 doesn't have that performance not even out of the box on the week. Or second. And the SGS6 edge plus my sister uses lasts four hours of use tops.
Oh my Note 4 could last 36 hours or a day and a half. If I left it alone and didn't touch it.
Fact is I use my phone all day. And it lasts over 24 hours and at times a day and a half. As far as the totals, I'm not that vested in trashing Apple as to count the seconds listed on the battery performance.
And if we go by your totals, it's still more than six hours use.
Now, if we go by usage, it is the time noted. Because it counts background usage for those apps that are running in the background. Not that I actually sat there using a calculator hoping to do a gotcha. I'm not into that. But background processes does count for usage in iOS.
https://support.apple.com/en-us/HT201264
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