This paper delves into the emerging role of wearable devices in the realm of environmental justice and public health monitoring, offering a novel perspective on how technology can empower communities, especially those facing disproportionate environmental challenges. It provides an in-depth analysis of various wearable sensor technologies, including air quality monitors, UV exposure sensors, and water quality sensors, highlighting their significance in real-time environmental and health data collection. The research underscores the importance of these devices in enabling marginalized communities to actively participate in monitoring and responding to environmental health hazards. By facilitating access to personalized and location-specific environmental data, wearable technologies not only raise individual awareness but also contribute to community-level advocacy and action. Furthermore, the paper explores the potential advancements in wearable technologies through the integration of AI and machine learning, enhancing their effectiveness in data analysis and interpretation. However, it also critically examines the challenges associated with data privacy, security, and accessibility, emphasizing the need for inclusive and equitable technology deployment. This study is significant for its contribution to understanding the intersection of technology, environmental health, and social justice. It argues that wearable devices can be transformative tools in achieving environmental justice, providing communities with the means to gather evidence, advocate for change, and protect public health. The findings of this paper are pertinent for policymakers, public health officials, and environmental justice advocates seeking to leverage technology for societal benefit.