Amazfit Health Band is the first wearable device that focuses on heart health. It tracks ECG, HRV, and heart rate. If HRV drifts too high or low, the Health Band will notify the wearer immediately. From irregular heartbeat (arrhythmias) to weakness in the heart (cardiomyopathy), any risk or danger can be instantly detected with the Health Band. Although the product provides medical level data, it was designed with everyday wear in mind. Lightweight and comfortable, the entire device weighs only 24 grams. The slim profile and soft material make it comfortable to wear. The band is exchangeable for a variety of colors.