Apple Health is the device-and-app health hub on iPhone, iPad, and Apple Watch. Built on the SMART on FHIR standard, the integration lets patients consent to sharing their own data into the chart, including home blood pressure readings, heart rate, ECG, blood oxygen, glucose readings, weight, activity and exercise minutes, sleep, and irregular-rhythm notifications. Useful for hypertension follow-up, AFib monitoring, diabetes management, and any condition where what happens between visits matters as much as what happens at the visit.