[WindowsCentral.com]

This will be a short list.
So you're considering the Harman Kardon Invoke over an Amazon Echo. Or, more specifically, the $150 Echo Plus, which is closer in price to the $199 Invoke.
Both are smart speakers. Both have "Skills," which let them hook into services like music or connected home products or, well, whatever. Anything and everything.

Full story from the WindowsCentral blog...