I purchased it in order to train with it, use it as a heart rate reader, etc. It was discovered that when you run, they can end the recording or pause it from an unintentional touch, and you won't even know it; nevertheless, distance is not measured when you are sailing on a boat. In general, he is always pushing you to pay for paid applications for your iPhone since, if you don't, you won't be able to normally evaluate the data (workouts, sleep, pulse). That is, money should be spent on something, but not on physical education or sports; otherwise, it is wasted.
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