SMHeart Link: Taking the iphone as a biking computer to the next level

I’ve written a number of posts about using the iphone as a biking, running and even golfing computer. Well, there is the next level. A full training environment!  From SmHeart link. As good as having speed and elevation change is useful for training, adding cardio and other measure, like cadence and power, would bring you to pro level training.

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