How many Iphones does it take to stop an Ak-74 bullet?

How many Iphones does it take to stop an Ak-74 bullet?
1037

If the answer "How many Iphones does it take to stop an Ak-74 bullet?" question is interest you just watch the video to know.
P.S: Iphone lovers with weak nerves, we kindly ask you run away from this video.