In order to better monitor and/or control the internal memory of the OnePlus smartphone, we can determine the resolution of the video recordings, whereby it should be noted that a higher frame rate or FPS rate (Frames per second) leads to a higher file size.

Depending on the device model and its camera sensor the following formats are available:

Android 10 | OxygenOS 10.0
Step 1:  Open the  Camera app
Step 2:  Open the  Settings
Step 3:  Tap on  Video resolution
Step 4:  Set the  Video resolution of the rear camera
  1. Open the Camera app
  2. Open the Settings
  3. Tap on Video resolution
  4. Set the Video resolution of the rear camera

OnePlus Instructions