The video shows a person holding a Samsung smartphone in their hand. The person uses their thumb to swipe through the phone's settings menu, which includes various options such as Wi-Fi, Bluetooth, and power saving modes. The person then selects the power saving mode and adjusts the settings, specifically changing the battery usage time from 19 hours to 15 hours. The phone's screen is visible throughout the video, and the person's hand movements are deliberate and precise.