This paper presents the development and evaluation of a novel indoor localization device that integrates Ultra- Wideband (UWB), WiFi, and WiFi Fine Timing Measurement (FTM) technologies. By combining these technologies, our work aims to enhance localization accuracy and reliability compared to systems reliant on a single technology. A hardware prototype is developed, and the necessary infrastructure for its operation is described, along with a specialized localization algorithm that adapts to the characteristics of the combined signals. Measurement results from a test environment demonstrate significant improvements in precision and reliability. This integrated approach also contributes to cost reduction by opportunistically utilizing existing reference points within a scenario.