Preliminary Evaluation of a Wrist Wearable Heart Rate Sensor for the Detection of Undiagnosed Atrial Fibrillation in a Real-World Setting Reading time: < 1 min ← Machine Learning Detection of Obstructive Hypertrophic Cardiomyopathy Using a Wearable Biosensor → An Overview of the Feasibility of Permanent, Real-Time, Unobtrusive Stress Measurement with Current Wearables