Lower native display resolution plays a huge role in battery life, due to the fact the display consumes the most battery power. More pixels they pack, the more power they consume.
There is some myth that lowering display resolution can save battery power, the answer is it depends.

Let's take the Samsung S21 Ultra as an example. It has QHD+ or 1440p vertical resolution. Lowering the resolution to FHD+ or 1080p will not reduce the display power consumption at all as it still need to lit up all 4.6 million pixels (3200 x 1440p = 4,608,000 pixels) on AMOLED screen. It provides power savings in other components though that shows/render the content on the display like the CPU / GPU as it is not pushed as hard at lower resolution (most noticeable during gaming).

This post has been edited by Josh95: Jan 19 2021, 09:07 PM

screen resolution factor

Screen size

6.7 inch vs 6.8 inch, the difference is negligeable

This post has been edited by Josh95: Jan 19 2021, 09:21 PM

S21 definitely have to go for ultra! Once you tasted 2k, hard to go bk.

Don't forget that S21 ultra got qhd+ screen while S21+ only fhd+. May be his S21 ultra in the video is using qhd+. That's why the battery life is slightly weaker than S21+. But we will never know since we don't speak Russian. Lol.

Actually it does not matter much because S21 Ultra native is QHD+ even if the default is set to FHD+ (keyword here is Native)
Watch this video if you want more concrete proof

fixed.

Nonsense. My s10+ got both resolution and i barely notice the difference. Only monitor can tell the difference.

I see. Then it's a no brainier choice. If want longer battery life, fhd is the only way to go. If want higher resolution, then go for qhd (S21 ultra)

I am sure go for S21+. Getting tired with S20+ battery life. Lol

Your eye resolving power is not good enough, that's all I can say.
You cannot see the differences does not means others cannot though.

Text is always blurrier at non native resolution. The difference is more subtle due to high PPI in Samsung flagship phones.

But since Ultra just slightly bigger than S21+, can consider get S21 Ultra
I am interested to see how the camera between both of them

too expensive

woah Russian so fast can publicize review / comparison video, not embargo?

To clear all doubts...

Wait few months then the price definitely drop one

wait? no freebies esp charger

Nah. 1. Too heavy 2. Too expensive.

Not to mention that s pen. If I buy ultra but don't buy that s pen, then rugi. If I buy that s pen, then need to buy that special casing as well, then end up heavier and more expensive. So ya. Ultra is not for me. Lol.

As for the camera department, of course the ultra is much better lah. They put all the good stuff inside the Ultra. If you really care about camera performance, then Ultra is the only option.

This post has been edited by Max2006: Jan 19 2021, 11:13 PM

Too bad! Please get your eyes check!