“The Motionize SUPerior is an accelerometer that mounts to your paddle, synchs to your smartphone and provides stroke and distance metrics on the water.
Its small, simple package is specific for standup paddling and tracks data like total stroke count, number of strokes per minute, distance traveled per stroke and the entry angle of your blade.
The SUPerior app maps your course and stores all the info from each session, making it easy to distinguish trends. It can also connect to an external activity sensor to track heart rate and calories burned. To use it you’ll want a waterproof phone case and/or board mount (neither are included) because your phone comes along for the ride.
The added luggage is a small price to pay for the improvement that comes from the top-quality feedback….”
Read more at: Supthemag- five gagets for paddlers