Remote monitoring of cardiac implantable electronic devices has transformed follow-up care for patients with pacemakers, implantable cardioverter defibrillators, cardiac resynchronization therapy devices, and implantable loop recorders. By enabling continuous or scheduled transmission of device data, remote monitoring improves arrhythmia detection, identifies device malfunction earlier, reduces clinic visits, supports heart failure management, and enhances patient safety. This article reviews current technologies, clinical outcomes, workflow models, barriers, and future directions in remote monitoring of cardiac implantable electronic devices.