HelloHeart named top health app on Apple Watch

The Apple Watch, Apple’s first step into the world of wearables, starts shipping to consumers today.

The Watch marks an interesting time in the wearable fitness space, in particular. Health and fitness trackers like Jawbone Up and Fitbit have dominated much of that space in the last few years. According to NDP, these wearable fitness devices sold close to 3.3 million units last year.

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