It's been rumored for months that Apple will be stepping deeper into health and fitness tracking when it launches its next-generation iOS 8 software for mobile devices. Now a series of in-depth screenshots purportedly from Apple's "Healthbook" app has hit the web, revealing capabilities to track everything from steps taken and blood pressure to how you're sleeping at night and if you're drinking enough water.
In images obtained by 9to5Mac, the look is reminiscent of Apple's Passbook app, the iPhone's virtual pocket for things like airline boarding passes, movie tickets and coupons.

Image: 9to5Mac

The app features different categories that house personal information, such as bloodwork, heart rate, hydration, blood pressure, activity (steps), nutrition, blood sugar, sleep, respiratory rate and weight. Healthbook will be able to both store and track certain data points, such as heart rate, blood pressure and oxygen saturation, but this implies (as rumored) upcoming iPhones will come with intelligent sensors that enable this type of tracking.

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Although it doesn't show a section for monitoring stress or pregnancy, there is a way to track a user's oxygen saturation, which can be an indicator of breathing quality. Meanwhile, an "Emergency Card" can store the user's name, medications, doctor information and other key information that might be useful in case of a medical emergency.
The fitness monitoring app will also likely go head to head with wristband trackers like Nike+ Fuelband SE and the Fitbit Force, but having access to vital health data would be relatively new to smartphones.
The company recently patented the technology for smartphones to keep track of this type of cardiac data.
The move doesn't come as a huge surprise. Apple hired various health and fitness experts in the past year, hinting at a major move toward the health and fitness space.
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