Originally Posted by
bbbean
My wife and I use Map My ride for this. It costs about 10% of the battery per hour, so it should be fine for 2-4 hour rides. Alternately, if you buy a Garmin, it will offer live tracking for far less battery use.
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.