Animation takes 30 seconds to finish. iPhone screen shows itself to the viewer 5 times for 5 second intervals. So a total of 25 second video or different timed various videos can be used. In addition its easily adjustable; you may want to add 5 seconds more just trim and paste the original video and you have yourself another 5 second of animation or vice versa.
30 fps - 1920x1080 HD - Alpha Channel
AEP
1920 x 1080