A. 1. Calibrate the watch: Follow the instructions in the app to calibrate the health monitoring features, ensuring they are set up correctly. 2. Wear the watch correctly: Make sure the watch is worn snugly on your wrist, as a loose fit can lead to inaccurate readings. 3. Update health metrics: Manually input your health metrics in the app to improve accuracy.

B. 4. Reset health data: In the app settings, look for an option to reset health data and start fresh to see if this improves accuracy.