The video shows a close-up of a smartphone's fingerprint sensor. The phone is placed on a blue surface, and the fingerprint sensor is located on the back of the phone. The video demonstrates how the sensor can be used to unlock the phone. The fingerprint sensor is shown in both a locked and unlocked state, with the screen displaying various app icons. The video is shot in a well-lit environment, and the focus is solely on the fingerprint sensor and the phone.