Quote Originally Posted by ddabcd277 View Post
If Garmin add functionality to fenix to be used as a remote Bluetooth GPS I think this one would be superb.
Bluetooth will eat a half of worktime! Forget it! Bluetooth is instrument for audio and file transfer only.
But WiFi technology is good for energy saving. Try search for ANT. Garmin use this network protocol:

Spoiler: CLICK
https://buy.garmin.com/en-US/US/on-the-water/networking/gnt-10-nmea-2000-transceiver/prod124640_010-01134-00.html