Due to accelerated sophistication in achieving sustainable development of a person, wireless sensor network innovations are becoming a major research area in the health care industry. Wireless sensor networks offer constant surveillance of critical health criteria while operating in the medical field, supplying physicians and with more-needed support for reliable diagnosis and improved care more than a significant amount of time. This paper discusses emerging handheld Smart medical monitoring systems with an impact on Wireless Sensing Network (WSN) based applications. These monitoring systems are made up of different kinds of specific physiological sensors, transmission components, and processing capacities. The data obtained by the device are then transmitted to a patient's smartphone device that can connect. This information is communicated to the medical specialists on both their smartphone apps and stand-alone devices. Regarding the data findings both by the device, the practitioner will then suggest the medicine. The system architecture would lower the risk of patients visiting the doctor at all hours to track certain health status.