The video shows a person holding a smartphone in their hand. The phone has a black screen and a white front. The person uses their thumb to swipe up and down on the screen, revealing the phone's home screen. The home screen displays various app icons against a colorful background. The person then swipes up again, and the screen turns off. The person then swipes down on the screen, and the phone's home screen lights up again. The person repeats this action several times, swiping up and down on the screen to show the phone's responsiveness.