The integration of bioelectronic technologies into healthcare is transforming precision health monitoring and wellness tracking. This chapter explores the foundational principles, current advancements, and future directions of precision health, emphasizing the synergy between wearable devices, biosensing mechanisms, and digital health platforms. Wearable devices equipped with electrochemical, optical, and mechanical sensors now enable continuous, real-time monitoring of physiological parameters, ranging from glucose levels and cardiovascular metrics to stress markers and hydration status. These innovations are reshaping health management by shifting the focus from episodic care to proactive, personalized, and predictive interventions. Emerging technologies, including nanotechnology, flexible electronics, and artificial intelligence (AI), are accelerating the evolution of bioelectronic systems. Next-generation devices will offer multimodal sensing capabilities, enabling a comprehensive understanding of individual health dynamics. Real-time, closed-loop systems, integrating advanced analytics and therapeutic responses, are poised to automate disease management for chronic conditions such as diabetes and hypertension. Additionally, the seamless integration of wearable devices with telemedicine platforms and electronic health records (EHRs) promises enhanced accessibility and personalization in healthcare delivery. Despite the transformative potential of these technologies, challenges related to accuracy, data privacy, regulatory compliance, and healthcare integration persist. Addressing these concerns is essential for realizing the full benefits of precision health. This chapter provides a comprehensive assessment of the technological, ethical, and regulatory dimensions of precision health monitoring, highlighting its role in fostering a data-driven, patient-centered, and preventive healthcare paradigm. The discussion underscores the importance of innovation in advancing global health outcomes.