WiFi Extender
Boosts WiFi reception and provides a firewall protected custom WiFi hotspot for the boat. The antenna is able to pick up many more WiFi spots than is normally possible with phone or laptop. If you have a Xfinity / Comcast internet account with 'Performance Internet' or higher level of service, then you can connect to 'xfinitywifi' hotspots after providing your Xfinity / Comcast login credentials. You only need to login once, and then you will connect to the WiFi hotspots automatically.
The WiFi booster / firewall product is Redport Halo WiFi Extender and is available for about $400 from Amazon.
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