a Training Tracker is an Android app that allows you to easily track your training sessions and supports ANT+, Bluetooth LE, and GPS. 

With this watchapp, you can even display all values on your pebble and control the Android app with the buttons on the right side of your pebble:
Top: just turn on the light.
Middle: next view (can be configures within the app).
Bottom: short: new lap; long: toggle pause.