Pair your Watch Pro with the app. In the app Device page, tap to enter Health Monitoring. 1. Turn on the Continuous Heart Rate Monitoring switch. You can set the following: (1) Set a reminder for high heart rate in a resting state. You can also turn off this reminder. (2) Set a reminder for a low heart rate in a resting state. You can also turn off this reminder. (3) Set a reminder for a high heart rate during activity. You can also turn off this reminder. 2. Turn on the Continuous Blood Oxygen Monitoring switch. (1) Set a reminder for low blood oxygen. You can also turn off this reminder. 3. Turn on the Continuous Stress Monitoring switch. When you wear the Watch Pro, it will automatically measure and record your stress level every 30 minutes.