After working with ESRI support on this, the Garmin Glo works out of the box with Collector, no configuration within the app is required. Just connect the device via Blutooth and open Collector. Because of the data stream the Glo puts out, any further configuration with the Glo will not work. (The Glo is NOT a high accuracy GPS device) Here is the response I received from ESRI regarding the GNSS badge within Collector:
"Here is the answer to your question; When using the Integrated Receiver on iOS devices, regardless if the accuracy is coming from an external GPS receiver, its limited to only reporting up to 5 meters. Therefore, the GNSS badge in Collector will only display accuracy up to 5m or the equivalent in feet.
Additionally, you will not be able to utilize any of the advance high-accuracy gps capabilities with the Garmin Glo in Collector because it will use the Integrated Receiver on iOS to connect with Collector. For example :You will not be able to use location profiles(required for collecting data in a projection that is not in Web mercator) and be able to collect any of the GPS metadata."
Here is a link for connecting to high accuracy devices: Use high accuracy GPS—Collector for ArcGIS | ArcGIS