To get the Cortana integration, you need to have a Lumia (Windows Phone). Which is understandable, since Cortana is proprietary to the Windows ecosystem, just

To get the Cortana integration, you need to have a Lumia (Windows Phone). Which is understandable, since Cortana is proprietary to the Windows ecosystem, just like Siri is to iOS and Google Now is to Android. The rest of the Band features work on either Android or iOS. The New Microsoft seems to be platform agnostic where it makes sense. Which is cool. I've got a Lumia 920. The software is excellent, but the design of the case could be better. I added skateboard tape to the back to keep it from slipping out of my pocket (which always seemed to happen in movie theaters...) Resale value won't be anything like that of an iPhone, mostly because the plastic case is showing wear & dings that the glass + aluminum iPhone wouldn't have.