This paper presents a comprehensive study on the development and implementation of a smart doorbell system designed to enhance home security and convenience. The proposed system integrates advanced technologies such as video surveillance, facial detection, and wireless communication. It leverages IoT (Internet of Things) principles to enable real-time interaction, remote monitoring, and control through a smartphone application. Key features include facial detection for visitor identification, cloud storage for image recording, and notifications to alert homeowners of visitors or suspicious activity. The system aims to address challenges in energy efficiency, data security, and user-friendly design. Experimental results demonstrate the system's effectiveness in improving accessibility and security for modern smart homes.