This project involved developing the second version of a wearable ECG device. It is powered by an ESP32 C6 microcontroller, selected for its high processing speed and WiFi 6 capability, ensuring fast and reliable data transmission. The ECG functionality is enabled by the AD8232 ECG Module, which captures real-time heart rate and other vitals. The device includes a MAX1704x fuel gauge for accurate battery level monitoring, powered by a lithium-ion battery, and features a USB-C TP4056 LiPo charger and balancer for efficient charging. A JST connector is included for potential future feature expansion or IO connectivity. One of the standout features of this wearable ECG is its ability to log vitals in real time and transmit the data using encrypted MQTT packets to an AWS server. This secure data transmission allows for remote processing and logging, where medical professionals can access and review the user’s heart health data.