The video shows a person wearing a smartwatch on their left wrist and a Polar heart rate monitor on their right wrist. The smartwatch displays the time, date, and temperature, while the heart rate monitor shows the heart rate in beats per minute. The person uses their right hand to interact with the heart rate monitor, pressing a button to start the measurement. The heart rate monitor then displays the heart rate in real-time, with the numbers increasing as the person's heart rate increases. The video ends with the heart rate monitor displaying the final heart rate measurement.