Smart wearable sensors have evolved as a promising technology in healthcare, promising to redefine patient-centric medicine, monitoring, and diagnostics. The purpose of this research is to comprehensively analyse the benefits, applications, and challenges inherent in the integration of smart wearable sensors in healthcare. To achieve this, a thorough review of existing literature, coupled with case studies and technological analyses, was conducted. The study employed a systematic literature review to gather information on the various aspects of smart wearable sensors in healthcare. Additionally, case studies of real-world applications were examined to understand the practical implications of these technologies. Technical analyses delved into the functionalities and capabilities of smart wearable sensors, while regulatory frameworks and ethical considerations were investigated to highlight the complexities surrounding their implementation. These sensors enable real-time data collection, fostering personalized medicine and improving the efficiency of healthcare delivery. The findings underscore the potential of wearable sensors in transforming traditional healthcare models. The study highlights technical challenges associated with smart wearable sensors, such as data accuracy and interoperability. Regulatory frameworks and ethical considerations, crucial for ensuring patient privacy and data security, were identified as key implementation barriers. The insights derived from this research offer valuable guidance to healthcare professionals, researchers, and policymakers navigating the complexities of integrating smart wearable sensors into existing healthcare systems.