Systems for well-being and active aging increasingly rely on wireless technologies, as Bluetooth Low Energy (BLE), featuring low-power consumption. The wearable system presented in this paper consists of sensorized shoes connected via BLE to a smartphone. The peculiar streaming scenario, characterized by low throughput, but strict reliability requirements, has been modeled, and an experimental evaluation of the system performed. This study shows that BLE fulfills the requirements, opening the way to further investigations on power management analysis, and the impact of increasing throughput on the reliability requirements.