Microsoft Band (Full Review): 

The Microsoft Band is a fitness tracker that includes some smartphone features, such as the ability to read email, texts and other reminders on your wrist. The device is also one of the few fitness trackers that has GPS capabilities. The band tracks your heart rate, steps taken, calories burned and the quality of your sleep, and also offers a guided workout feature. But despite its whistles and bells, in our review, the Band seemed to come up short on comfort. It pairs with the Microsoft Health app, which works on iPhones as well as on Android or Windows phones. At $269, the Microsoft Band is at the higher end of the price range for fitness trackers.