Earlier quoted context omitted.
Pretty much any phone would only take 5% over 6-8 hours if being inactive and just waiting for an alarm to go off.
Has Android gotten a lot better on that front? Last I developed for Android was after they had some big push to improve battery life and they were still a ton worse.
Android itself doesn't do that, but much like buying a PC, it's hard to stop manufacturers loading it up with cruft.