From the Garmin Website:
Get Garmin Fit and start making the most of your exercise routine. This powerful app turns your smartphone into a powerful fitness training tool.
Work Out Smarter. Not Harder.
Garmin Fit lets you make the most of your exercise routine. It puts a wealth of valuable data right at your fingertips. Using your smartphone’s GPS, the app tracks your movements and provides you with your current speed, distance traveled, elapsed time and calories burned. Plus, with the built-in music features, you can easily select the perfect soundtrack for your workout.
At the completion of your workout, the app automatically uploads your workout data to the Garmin Connect™ website. There, you can view your route on a map, easily track your progress, share your workouts with others and much more.
Add Fitness Sensors
The Garmin Fit app was designed to be used with a wide range of wireless fitness sensors. Easily monitor how hard you’re working with a heart rate monitor, train indoors with a foot pod, or receive valuable cycling data with a speed/cadence sensor. To use these sensors, your phone must be ANT+™ enabled. Select Android phones include this capability, while iPhone® users may use the Garmin ANT+ Adapter for iPhone®.