This is the fingertip size heart rate and blood oxygen monitor with plethysmogram graphic display with oled colorful digits on screen. according to statistics from the world health organization, there are currently millions of people in the world susceptible to dying from a heart attack. poor lifestyle habits, heavy working stress, unhealthy diet, etc. have consistently worsened heart health causing various heart troubles. by using the first fda approved carepeutic fingertip pulse oximeter pro, heart rate and blood oxygen can be monitored anywhere and any time allowing you to take charge of your health with ease.