Global market for wearable healthcare devices will approach $70 billion by 2028. Devices fall into two broad categories: medical-grade wearables such as blood pressure, glucose and heart monitors. These devices undergo clinical research and must receive U.S. Food and Drug Administration clearance to gather data that will be used to support clinical decision-making. Common use cases include monitoring patients at home after surgery or assisting patients with self-management of diabetes or hypertension.