Fitbit vs Google Fit

Fitbit tracks your everyday steps, stairs climbed, calories burned, and more, motivating you throughout the day. Make every step you take a step toward better fitness. The Fitbit Tracker shows your real-time activity stats so you know how close you are to your objectives. It's with you every step of the day, motivating you to make small changes that add up to large results. Integrated with Fitbit Tracker.
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Google Fit
An open platform that lets users control their fitness data. Google Fit lets developers build smarter apps and manufacturers focus on creating amazing devices. It's a service that'll track all your health metrics - sleep, steps, etc.

Latest news about Fitbit and Google Fit:

06.01.17. Google Calendar integrates with Google Fit and Apple Health to help you stick to your fitness goals. Google announced an update to Goals (feature in Google Calendar) that allows you to connect Google Fit and Apple Health to the fitness goals you set in Goals. Once you hit your goal, your Google Calendar items will automatically be marked as “done.” When you look at your fitness goals in Google Calendar, Google will also show you how well you’ve done so far. The new feature makes sense given the ubiquity of fitness trackers and the fact that it doesn’t even take any special hardware (except for a compatible smartphone) to get started with services like Google Fit.

29.10.14. Google Fit app is available for Android devices. Google has released its Fit app, which acts as a central storehouse for activity recorded via your Android device, and via apps that use the Google Fit SDK. The dedicated Android app provides a way for users to see an overview of their collected health and fitness data in one central location. It uses your device’s sensors to tracking walking and other activity, and you can manually enter information about workouts not tracked, or your height and weight. Heart rate info from compatible devices, including Android Wear smartwatches, are also fed to the app. In short, it’s a competitor to Apple’s Health application, but with a very different approach to UI that appears to want to aim for simplicity above all else.

08.08.14. Google launches SDK for its health and fitness tracking service. Google Fit is a service for bringing health and fitness tracking to the Android ecosystem. It’s essentially Google’s version of Apple’s HealthKit service and will launch with the release of Android L later this year. Today Google announced the Preview SDK for Fit so that developers can now start building their own apps for the service before it becomes widely available. Currently, the SDK gives developers access to three different APIs. Developers will be able to use raw sensor data from connected apps and devices through the Sensor API. Using these APIs, a running app could register with a heart rate monitor, for example, to get its data every five seconds so it can display this info and give feedback to a runner.

26.06.14. Fitbit updates app with exercise and run-tracking features. Fitbit just got a little smarter and a lot better at tracking activity while you exercise. The updated Fitbit iOS app provides a new run-tracking feature called MobileRun, which keeps tabs on your pace, distance, split times, route and other stats in real-time. It even has built-in music controls, so you can manage your playlist from within the app while you run. Fitbit also has a new section in its dashboard where you can track your exercise patterns, including runs, over time. The app doesn't natively track workouts aside from running, but it can now pull in data from other Fitbit-compatible apps where you may record exercise routines, such as MyFitnessPal, and incorporate those stats into your activity log and calorie estimates.