You inject the information you want to share with your doctor through the application, which is then processed directly to your doctor to review. You can even set up an emergency card on your phone with important health information in the event of something happening. You have the option to allow this information to be shared to your doctor, it isn't going to be sent unless it's by your choice. It's actually more fleshed out and has features over what the GS5 offers, it works with a combination of health apps and combines that information into the application as well.
http://www.apple.com/ios/ios8/health/ »
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