But unlike before, when Alexa was offered for free on any Alexa-enabled device, customers will have to pay Amazon a monthly fee of $19.99 for the revamped voice assistant, which it calls Alexa+. However,

Alexa Plus will start rolling out next month in early access. It's an opt-in service and won't be available to everyone through an over-the-air update in March.

Amazon says Alexa+ is able to have conversations with a more natural, humanlike flow and can learn more about a user—such as dietary preferences or allergies—the more it’s used.