Microsoft has just announced its smart Band called Microsoft Band and you can read more about it here. The Microsoft Band companion app called Microsoft Health is now available for Windows Phone, iOS and Android.
Live healthier and be more productive with the Microsoft Health app for Windows Phone. Achieve wellness goals by tracking your heart rate, steps, calorie burn, and sleep quality. Maximize your fitness with Guided Workouts, 24-hour heart rate monitoring, and automatic activity counting. Be more productive with email previews and calendar alerts at a glance. Take notes and set reminders with your voice using Cortana personal assistant. Personalize your Microsoft Band and get new features as they roll out.