The LifeVest wearable cardioverter-defibrillator (WCD; ZOLL Medical Corp, Pittsburgh, PA) has been approved by the US Food and Drug Administration for use with select patients who are at risk for sudden cardiac arrest. However, one of its lesser-emphasized features is the ability to detect asystole and severe bradycardic events that can help in the early identification of patients in need of pacing. Here, we describe the case of a 71-year-old man who had advanced atrioventricular (AV) block lasting 10 seconds documented by the LifeVest system and discuss some of the features of the LifeVest that can be optimized to expedite the care of these patients.