The QOCA ECG heart rate monitor integrates cloud architecture and smart IoT (AIoT) technology, offering advantages such as wireless connectivity, compact size, real-time monitoring, and long-duration usage. It can flexibly respond to various needs and settings, providing precise heart data analysis. From single-lead ECG devices (ECG103, ECG105, ECG106A, ECG102D) to multi-lead ECG devices (ECG901, ECG1201), its user-friendly and comfortable design allows users to maintain their daily routines without disruption, whether they are showering, exercising, or working. The dedicated app can instantly display and record ECG data, and this accurate measurement information helps healthcare professionals make clear judgments and conduct effective health monitoring, significantly reducing disease risk and subsequent medical expenses.