Stress Level Test And Trend Analysis 3. Heart Rate Trend Analysis 4. Integrated with Apple Health App 5. Analysis of abnormal heart rate: Tachycardia, Bradycardia, Normal heart rate 6. Pulse waveform graphs 7. A beep for the heartbeat monitor 8. Unlimited Data Storage ======== Attention ======= 1. Please place your finger tip on the rear camera lens and flash. Please DO NOT press hardly, that you may cut off the blood circulation of your fingertips and affect the measuring. 2、The APP needs about 5 seconds to learn your heart rate and update the value, and it takes more than 10 seconds to get the accurate heart rate value, The default is 30 seconds. * NOT INTENDED FOR MEDICAL USE, FOR FITNESS USE ONLY From our heart to yours, Plus1Health Team