Offers in-ride challenges through Strava live segments
Reports cycling-specific VO2 max and recovery time when used with power and heart rate
Pairs with compatible ANT+® indoor trainers for data display and control
Tracks Functional Threshold Power (FTP), watts/kg and cycling dynamics when used...
I usually use My Tracks from Google as most of my rides are commute ones, but I have started using Strava recently.
One thing got in my mind, what actually define an segments, and are the segments direction oriented? If not it is quite unfair when there is a sloop to compare up and down.