If Cortana will work on Amazon’s Alexa-powered devices, and Alexa will run on Windows, what's the point of buying Cortana-powered connected speakers like Harman Kardon’s Invoke? In a word: Skype.
The struck Wednesday between Amazon and Microsoft—neither of which owns a digital assistant that’s natively built into a major smartphone OS—extends Amazon’s reach to the more than 400 million PCs running Windows 10, and ties Microsoft closer to another third-party hardware platform.
Alexa will be available as a Cortana skill on Windows 10 PCs first, followed by the Cortana apps on Android and iOS in the future, a Microsoft spokeswoman said in an email. Conversely, Cortana will be available as an Alexa skill on devices like the Amazon Echo, Echo Dot, and Echo Show. Microsoft has yet to confirm whether Alexa will be included on the Invoke.