The Microsoft Band is a revolutionary smartband and fitness tracker. The Band is compatible with iOS, Android, and Windows Phone mobile devices and can provide you with up to the minute smartphone notifications and instant access to information on the web. Using Cortana, you can control all of the Band's functionality with the sound of your voice. The Band is also connected to Microsoft Health which allows you derive insights from the extensive health metrics that the Band can track using the multitude of built-in sensors like the optical heart rate monitor, skin temperature sensor, and accelerometer. The Microsoft Band is paired with various applications and stores like Gold's Gym and Starbucks making it an all encompassing device. The Microsoft Band can be purchased for $199.99.