The Microsoft Band works with the iPhone , Android devices, and Windows Phone, but they don't all get Cortana integration. If you're running Windows Phone 8.1 Update , you can use Cortana on the Microsoft Band. How does it work? How does it look? We show you in our hands-on video.

In order for Cortana to work on your Microsoft Band, you need Cortana to be installed on your Windows Phone. If you press the Search button on your Windows Phone and see the Bing image of the day, Cortana isn't on.

To bring up Cortana, press and hold the Action button on your Microsoft Band for 2 seconds. You can use Cortana any time, even when the display is off. You do not need to tap the Cortana tile. Your phone must be nearby, however. Cortana uses the mic on your Microsoft Band to "listen" when you speak.

After you speak, Cortana opens on your Windows Phone and responds to your request. Depending on your request, it displays the response on the Band itself or it lets you know if you need to view your phone.