In general, other Bluetooth devices should not interfere with receiving alarms*. If the FreeStyle Libre 3 app† loses connectivity with the sensor and the signal loss alarm is set to ON, you will receive notification of the signal loss on the FreeStyle Libre 3 app.
* Notifications will only be received when alarms are turned on and the sensor is within 33 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 3 User's Manual for more information.
† The FreeStyle Libre systems apps are only compatible with certain mobile devices and operating systems. Please check the Support section of our website for more information about device compatibility before using the apps. Use of the FreeStyle Libre systems apps may require registration with LibreView.