My Garmin does off-course route recalculations locally on the GOPS device, not on phone. When I'm out for a ride (either with or without directions) GPS device works alone. Also can do route creation locally on the GPS device without phone connection.rareposter wrote: ↑28 Mar 2024, 8:13am ...
That's going off into the minefield of using a phone vs using a dedicated GPS as the nav device - there are pros and cons to both but as a general rule, the phone and GPS work together, linked by Bluetooth so the GPS uses the much more powerful processing power and connectivity of the phone to do route calculations initially and then the navigation can be left to the usually smaller, neater, much more robust and weatherproof GPS unit.
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Ian