When you're properly connected to the Navdy in your Bluetooth settings, you'll notice there are two connections.
The first connection is Bluetooth Classic and the other is Bluetooth LE. Your iPhone® sends notifications to the Display using Bluetooth LE. The rest of the communication between your phone and the Display happen using the second connection, called Bluetooth Classic.
There is no need to select and connect these networks in order to pair to your Navdy. All connections should be completed solely through the Navdy app.
Please note, both device networks in your Bluetooth settings should appear here in order for your phone and the Display to fully connect.