Why Can I Only Choose 720p when Playing Videos on Some Video Players in A9/ A5 2020?

Situation: You are unable to choose other resolution when playing videos in A9/ A5 2020.

Applicable to: A9 2020, A5 2020

The main screen resolution of OPPO A5 2020 and A9 2020 is 1600*720 pixels. When playing videos, some video players may detect the actual resolution of the screen, not the actual resolution of the video, causing the video player to automatically choose 720 pixel.

This is because the video is scaled to match your screen resolution in order to display the best possible quality, without changing its actual resolution.