Open the Camera app, then tap the Video mode button .
The video camera viewfinder appears on the screen.
Point the lens toward the subject you want to capture in your video.
The video retains the orientation in which it was taken. If you hold the phone both vertically and horizontally to take videos, you'll need to rotate the phone to view your videos in full screen in the Gallery app.
Tap the Record icon once to start recording.
The Record icon changes to the Pause icon once the recording starts. Tap it to pause your recording.
A timer showing the length of the video is displayed.
Tap the Stop icon (in the lower-right corner of the viewfinder) to stop recording.