In the video, a person is holding a smartphone in their hand and using their thumb to interact with the screen. The phone is displaying a stopwatch application with a black background and white numbers. The person is seen pressing the stopwatch button, which starts the timer, and then pressing it again to stop the timer. The timer is shown counting up from 00 seconds to 01 seconds, and then back down to 00 seconds. The phone's screen also displays the time as 6:00 pm. The person's thumb is visible throughout the video, and the background is a wooden surface.