Bluetooth Low Energy (BLE) technology is increasingly recognized as an effective indoor navigation solution, particularly in areas where GPS cannot function. This review focuses on BLE-based systems tailored for visually impaired users, examining their advantages and limitations. It compares various indoor localization methods such as Wi-Fi, BLE, and image processing in terms of accuracy, efficiency, and deployment simplicity. BLE beacons are highlighted for their low-power consumption, adaptability, and cost-effectiveness, making them suitable for large-scale, real-time navigation. To enhance accessibility, the review discusses integrating assistive features like audio navigation using BLE signals paired with voice assistants, ensuring hands-free operation. Additionally, it covers technologies such as haptic feedback and obstacle detection, which provide non-verbal cues to alert users about obstacles or landmarks. The system architecture is explored, focusing on app integration, user-friendly interfaces for visually impaired users, and cloud management for delivering real-time updates. By identifying research gaps, this review suggests directions for future development of BLE navigation systems aimed at enhancing the independence and mobility of visually impaired users in indoor settings.