You can share a prerecorded video using the YouTube application. First, you must create a YouTube account and sign into it on your phone.
You can also share the videos you record with the Camera application by uploading them to the YouTube site.
Tap the Record video icon at the top right of the main YouTube screen.
If you want to set any configurations manually, tap the screen to open the video camera settings.
Point the lens to frame the scene where you want to start.
Tap the Record icon to start recording.
Tap the Stop icon to stop recording.
Tap the OK icon and sign in to your YouTube account.
Enter a title, description, and tags for your video.
If you want to share the video with everyone, tap the Privacy field and then tap Public. If not, tap Private or Unlisted.
Tap Upload.