Heart disease is the number 1 cause of yearly deaths, that stays true even in the middle of the COVID-19 pandemic. COVID patients who already had early heart diseases have a higher mortality rate. From recent founding, it is known that COVID also kills made blood clots in heart coroner like fat clotting from Myocardial Ischemia. ECG (Electrocardiograph) is not just a device used to monitor heart disease, but the heart’s entire activity. Meaning it could detect blood clots inside a COVID patient’s heart. The question is: “Are there enough ECGs for every patient?” Accounting that the big hospitals in Indonesia have ECG but with much smaller health care centers like Puskesmas left without one. Blue ECG is an ECG device designed to be portable and useful with low-cost production. With its Bluetooth function accompanied by a Smartphone app, it could be used to diagnose patients from long distances.