17 March 20149to5Mac:
Each category of functionality is a card in the Healthbook. Cards are distinguished by a color, and the tabs can be arranged to fit user preferences. As can be seen in the above images, Healthbook has sections that can track data pertaining to bloodwork, heart rate, hydration, blood pressure, physical activity, nutrition, blood sugar, sleep, respiratory rate, oxygen saturation, and weight.
The scope of this project is insane. Apple isn’t starting small with this one. Although it is currently unknown where Healthbook sources this vast array of data from, I have to think it’s an Apple wearable. Apple is a selfish company; they only spend significant effort on stuff that directly benefits themselves. Healthbook will only be useful if it gets a constant stream of reliable data backing it — the only way for Apple to guarantee that is by making a device it controls.