That seems crazy low. I have an iPhone Mini (and would switch back to Android when I replace it if they have a mini quality phone and Apple doesn’t) and my battery lasts “all day.” I’m not sure how it works out in terms of screen on time, but it’s got to be at least 6 hours a day. Probably more.
6 hours or more _per day_ sounds absolutely insane though, you must be overestimating that unless you use your phone as a GPS to commute or some similar use case that requires it on in the background.
Interesting. I do use my phone a lot: slack/email regularly throughout the day, twitter addiction, videos in the background while doing other stuff, and reading; but you might be right that I'm overestimating it. (Screen Time says about 7 hours, I have no idea what that counts though)
Regardless, if the consensus in reviews is about 5 hours asking for 4 isn't crazy, especially since (IIRC) iPhones tend to do better than Android in battery life.