This systematic review explores the nexus of smart technologies and sustainable ecotourism, analyzing existing literature to understand the significance, components, challenges, and contributions of smart ecotourism to sustainable development. A total of 29 high-quality studies were identified from 9583 records, focusing on scholarly, peer-reviewed works from developing countries. The review used PRISMA guidelines, Joanna Briggs Institute, and Cochrane Risk of Bias tools to assess study quality. Thematic analysis was employed to extract and synthesize data, identifying patterns and trends relevant to smart ecotourism sustainability. Dual analyst verification ensured data integrity and reliability. The findings highlight the role of IoT in promoting sustainable ecotourism, the challenges and opportunities associated with smart technologies, and the importance of collaboration among stakeholders. Smart technologies like AI, IoT, and AR/VR enhance operational efficiency while reducing environmental impact. Ecotourism, partnerships, and education are key to successful implementation. The review emphasizes the need for sustainable practices, environmental awareness, and economic feasibility in smart ecotourism. It also discusses the importance of community-based tourism, technological innovation, eco-friendly infrastructure, and regional variations in sustainable smart ecotourism. The study concludes that integrating smart technologies and promoting sustainable practices can enhance the visitor experience, support local communities, and protect natural ecosystems. The review provides insights into the global implementation of smart ecotourism and highlights the significance of technology in promoting sustainable tourism models.This systematic review explores the nexus of smart technologies and sustainable ecotourism, analyzing existing literature to understand the significance, components, challenges, and contributions of smart ecotourism to sustainable development. A total of 29 high-quality studies were identified from 9583 records, focusing on scholarly, peer-reviewed works from developing countries. The review used PRISMA guidelines, Joanna Briggs Institute, and Cochrane Risk of Bias tools to assess study quality. Thematic analysis was employed to extract and synthesize data, identifying patterns and trends relevant to smart ecotourism sustainability. Dual analyst verification ensured data integrity and reliability. The findings highlight the role of IoT in promoting sustainable ecotourism, the challenges and opportunities associated with smart technologies, and the importance of collaboration among stakeholders. Smart technologies like AI, IoT, and AR/VR enhance operational efficiency while reducing environmental impact. Ecotourism, partnerships, and education are key to successful implementation. The review emphasizes the need for sustainable practices, environmental awareness, and economic feasibility in smart ecotourism. It also discusses the importance of community-based tourism, technological innovation, eco-friendly infrastructure, and regional variations in sustainable smart ecotourism. The study concludes that integrating smart technologies and promoting sustainable practices can enhance the visitor experience, support local communities, and protect natural ecosystems. The review provides insights into the global implementation of smart ecotourism and highlights the significance of technology in promoting sustainable tourism models.