iphone 16 pro max or Samsung galaxy S25/S24 Ultra

[Sudbht]

I can answer this as well.

So, it can last one day full no issues. My two friends each having S23 ultra and s25 ultra, I know.
So, they are able to use whole day, it's just they have to keep their phone is power saving whole day.

Same is the case with me. However, keeping on power saving doesn't feel that much worry. It just limits CPU usage to 70%, makes it dark mode only. Limits refresh rate (I don't care unless my phone is working smoothly) and do some optimizations like deep sleeping etc.

So, if you are just okay with this, it’s a solid choice.

Have been using S20, now S23, and I keep my phone on battery saver whole day.

Oh okay got it. What if we don't use it with power saving mode? Does it lasts for a day? S23U came with exinos processor? If yes may be its not optimized well enough but 23U onwards it's snapdragon.