I may have misunderstood how LIvetracking works - but when I use my Garmin Forerunner 620 with my Android smartphone it only tracks speed, distance and GPS location. So no lapdata, not heart rate, cadence??? Am I doing something wrong?
The most recent firmware version for the Forerunner 620 supports the following external sensors: * footpod * bike speed/cadence sensor
Those sensors need to be 'paired' to the Forerunner. The Forerunner will then include those sensors' data with the LiveTrack data. Lap data is built into the Forerunner (no external sensor necessary).