Sustainability in the Internet of Things (IoT) refers to the strategic design, deployment, and management of connected smart devices in a manner that minimizes environmental impact throughout their lifecycle. This involves utilizing energy-efficient hardware components, extending device lifespans through over-the-air updates, harvesting ambient energy sources, and recycling electronic waste responsibly. Additionally, IoT systems contribute to broader ecological goals by optimizing resource consumption, reducing carbon emissions, and streamlining industrial automation processes.