Let's assume going out for training camp/vacation and no wi-fi available....the scale from what i understood on garmin webpage is BTLE and ANT+ giving to opportunity to transmit datas on those protocol (here Connect IQ should work for Fenix3/FR920,.....users)
I’m not really sure there’s any consumer advantage in using ANT+ over Bluetooth Smart on the desktop for scale configuration alone, it’s probably a wash since they’d still have to ship a USB adapter to ensure broad compatibility. Had they enabled the ability to connect to older Garmin watches via ANT+, that might have been a selling point (albeit a slim one).