Electrocardiograph KardiaMobile® USB Connection Smart Phone Display Resting #AC-009-UA-CFeatures Record a medical grade EKG from home Download and email your EKGs to your doctor FDA cleared to detect AFib and more KardiaMobile is a smart device that can record a medical grade electrocardiogram (EKG) right on your smartphone EKGs measure the electrical activity of your heart and are used in hospitals to detect irregularities with your heart rate or rhythm, which may be indicators of a heart condition such as atrial fibrillation (AFib)