The four learning units collectively explore the transformative role of mobile-first design and mobile technologies in enhancing digital experiences, particularly in South Africa. Unit 1 emphasizes mobile-first design as a vital strategy for inclusivity and accessibility, especially where mobile internet dominates, supported by responsive frameworks and used across education, banking, and government services. Unit 2 focuses on how mobile devices support Open Distance e-Learning (ODeL) at UNISA, offering flexibility and access while highlighting challenges like data costs and connectivity. Unit 3 introduces the Microsoft 365 Mobile App as a comprehensive productivity tool that integrates essential applications and AI features to streamline academic and administrative tasks. Unit 4 explores the Create function in Microsoft 365 Copilot, showcasing how AI enhances content creation and device management, turning mobile devices into efficient hubs for learning and collaboration.