s21 ultra fhd v wqhd

[tinglish]

Hi guys/girls

Just wondering if anyone knows the difference in battery usage between fhd and wqhd?

I mean I know wqhd uses more battery but how much more compared to fhd.

Cheers 

[LiquidSnake]

Regarding WQHD+ saving more battery life than FHD+ on a black background; is the former also more efficient when the screen is off?

In addition, how is it possible than WQHD+ saves more battery life? When going to my power saving mode settings, it basically says FHD+ is more battery efficient than WQHD+. Is Samsung Power Saving Mode actually wrong in giving estimations of an increase in battery life (in hrs, mins, secs) then?

[Joeeye]

In the case of the S21 Ultra, WQHD allows refresh rates as low as 10Hz (1Hz according to some info from its LFD data), this isn't the case for 60Hz mode. Therefore there are scenarios in which the screen will consume less power when running adaptive 120Hz vs standard 60Hz (it's believed there is some adaptive refresh in this mode, but not as significant as with 120Hz).