It's a service that'll track all your health metrics
Google has joined the recently emerged market of the health tracking system with its Google Fit health initiative which is going to allow users to keep a track of all things health including sleep, steps taken, heartbeat etc. This brings us to believe that Android is also getting something strong on health like Apple’s iOS did with its HealthKit.
The Android Fit is collaborated with multiple companies including Adidas, Nike, Withings, Intel and RunKeeper and the system is going to make sure that you have your data all combined in one place instead of in different apps. Nike's FuelBand wearables were specifically given a shoutout during Google’s developer conference.
The disappointing bit is that Google will probably not be able to deliver us something like the health app of the iOS 8. What’s coming out of Google doesn’t seem to be a dedicated app which is going to collect all health related data. Instead, it is more like a platform for health device manufacturers trying to make their devices interface with Android.