On this page we compare Amazon Echo Dot and Harman Kardon Invoke. Harman Kardon Invoke has a louder speaker than Amazon Echo Dot. Amazon Echo Dot takes up less space than Harman Kardon Invoke. The second product appears to be heavier than the first. Harman Kardon Invoke is priced higher than Amazon Echo Dot. The first product is based on Alexa and the second on Cortana. Below we find more information on various aspects between Amazon Echo Dot and Harman Kardon Invoke. Published data is always indicative and may contain errors or be subject to change. Always check official sources.