‘All Systems’ refers to the option on the most premium and modern watches to tap into various GNSS. Enabling this mode allows Garmin to leverage GPS, GLONASS, Galileo, QZSS, BeiDou, and Navic ...
and after spending a lot of time with the Garmin GPSMAP 66i, we feel it is aimed very much at the latter group. The unit, which combines a handheld GPS navigational device and a satellite ...