Keep the Screen on When Watching Videos
No one likes watching a video or something on their phone and the display turning off or going DIM because you didn't interact with the device. This is an option in settings, which the phone is smart enough to turn off when not in use. However, some don't like changing these settings to 3-5 minutes.
If you're watching a video and the phone can sense your eyes are looking at it, it won't dim. So long as this unique feature is enabled in settings. It's called Smart Stay.
Go back into settings > display > and turn on Smart Stay.
This article may contain affiliate links. Click here for more details.