Using a smartwatch to identify the morphology of atrial flutter

The Apple Watch (Apple Inc, Cupertino, CA) is a class II medical device that features an electrocardiogram (ECG) monitoring feature that is primarily used for the detection of atrial fibrillation.1 With the increasing availability of the Apple Watch and other consumer-grade rhythm monitoring devices, identifying the strengths and limitations of utilizing these devices in the clinical setting, particularly during an era of increasing telemedicine, is of vital importance. Here we present a case demonstrating a specific limitation of the Apple Watch in the identification of atrial tachyarrhythmias and provide a solution to resolve this issue.