One of the advantages of the Samsung Galaxy S21 series is its bright screen, sharp images and supports up to 120Hz refresh rate . But it is like two blades, because of course this will make the Galaxy S21 series phones run out of battery much faster.
Unlike other OEMs (eg Google), luckily Samsung provides an option to lower the screen resolution to HD + or Full HD +. If you feel that one of the causes is the screen, please follow the steps below to change the screen resolution of your Galaxy S21 series :

- Open settings or settings
- Select the display settings menu
- If so, scroll down until you find the screen resolution option
- Next, just set the resolution as you need
- Done
How, it’s very easy, isn’t it? Hope it is useful