The WIN-WIN-4S workshop aims to bring together researchers, scholars, and practitioners from academia and industry to explore recent advances on the intersection of Internet of Things (IoT) networks and wireless technologies with a focus on sustainability. As the world faces unprecedented challenges related to climate change and resource depletion, this workshop seeks to foster discussions and collaborations that leverage IoT and wireless solutions to address environmental, social, and economic sustainability. The goal is to create a platform for sharing cutting-edge research, innovative ideas, and practical solutions that contribute to building a more sustainable future.