Apple's Mac operating system will have easier ways to share and search, while the iOS software for iPhones and iPads is getting new features for keeping tabs on your health and controlling home devices.
Apple executive Craig Federighi said data from various fitness-related devices now live in silos, so you can't get a comprehensive picture of your health. He said that will change with HealthKit in iOS 8. Apple is also working with the Mayo Clinic to make sure your weight, calorie intake and other health metrics are within healthy ranges.