Chronic diseases kill many Humans in all over the world. Monitor risk factors including physical exercise to manage these illnesses. Wearables like Fitbit can track and give health data to help users make decisions. Most wearables marketing targets the young, active, and most populous racial groups. Wearable electronics can revolutionize healthcare by continuously monitoring health factors. Sensor technology, data processing, and communication protocols have made wearable gadgets useful for healthcare monitoring and diagnosis. This article discusses sensors, data processing, and communication protocols used in wearable electronics to revolutionize healthcare monitoring and diagnosis. A side-by-side table compares each method's pros and cons. The topic covers wearable electronics processing for healthcare monitoring and diagnosis. A block architecture and graphic explain healthcare monitoring and diagnosis using wearable electronics. Wearable electronics adoption is often hampered by concerns regarding data privacy and security, data reliability, and healthcare system compatibility. Wearable electronics are revolutionizing medicine in numerous ways, from monitoring chronic illnesses to giving emergency treatment. Wearable tech could develop into artificial intelligence, machine learning, augmented reality, virtual reality, cutting-edge sensors, telemedicine, 5G networks, nanotechnology, and blockchain. Finally, wearable electronics research could improve patient outcomes and quality of life, transforming healthcare.