Neowin checked out the Lenovo ThinkPad X1 Carbon notebook
A quote from the article:
Lenovo announced its new lineup of flagship ThinkPad X1 PCs at CES. For the most part, they contain improvements upon the existing products, such as eighth-generation Intel processors and a privacy guard that's built into the webcam.Lenovo ThinkPad X1 Carbon Review
The company sent me the new X1 Carbon, and while other features like Amazon Alexa and Dolby Vision were announced, this unit contains neither of those. Alexa support will be coming later this spring, and Dolby Vision is only on the 1440p model.
But speaking of Alexa, these PCs do come with far-field voice microphones, which do support Cortana at the moment. Once Alexa arrives, you'll be able to say different wake words to use either voice assistant.