Wi-Fi 7 builds upon the foundation of Wi-Fi 6 technology and represents a significant performance leap from its predecessor. With this advancement, Wi-Fi 7 further enhances the application scenarios that have evolved from the earliest versions of Wi-Fi technology, including high-density connections and business applications requiring high bandwidth and low latency. This chapter explores the current state of Wi-Fi technology in home environments, urban public areas, and key industry areas. It highlights the changes and new user experiences introduced by Wi-Fi 7’s high-performance technical characteristics. Readers will gain insights into how Wi-Fi 7, with its high bandwidth and low latency, meets the need for high-speed data transmission and real-time services over short distances. This chapter also provides an overview of effective Wi-Fi network design across different application scenarios. It outlines Wi-Fi 7 product functional specifications, demonstrating Wi-Fi 7’s ability to meet the growing demands for faster, more robust, and low-latency wireless communication across diverse environments and applications.