Originally Posted by
Looigi
Live tracking with a Garmin 510 or 810 is via bluetooth to your smartphone. As such, it does consume the smartphone battery. IDK if it's more or less than Glympse. I suspect it's similar or more.
Offloading the GPS and only using the phone to relay the data points should be less battery drain on the phone. it would only use the cell radio which is already running anyway and Bluetooth is low power compared to the GPS running...assuming the user doesn't have location running on the phone by default.