A portable, compact, and conveniently used emergency health monitoring system, that allows individuals to monitor their health status in real-time, this integrated system includes a few sensors that can measure vital health-related signs such as heart rate, blood pressure, oxygen saturation in blood, and body temperature features a liquid crystal display (LCD) interface, facilitating seamless interaction for individuals. Using an Arduino nano microcontroller. One unique aspect of this emergency healthcare monitoring system is its capacity to recognize critical situations and to automatically send out emergency condition notifications. For example, if the device recognizes a sudden increase in heart rate or a significant drop in blood oxygen levels, it can send a notification to the user and/or healthcare institutions wirelessly to the phone number that are registered with it. The system has a successful performance compared to other commercially available devices and hospital-grade equipment that has been tested on multiple human subjects........................... Keywords:............... Wearable device, vital signs, biosensors, GSM, microcontroller.