Below we find a useful comparison between Riva Concert and Harman Kardon Allure. Riva Concert has a less powerful speaker than Harman Kardon Allure. The volume of the second product (Harman Kardon Allure) is greater than that of the first. The second product appears to be heavier than the first. The two products are in the same price range. The artificial intelligence software (Alexa) is the same for both products. We provide here a summary designed for quick reading between Riva Concert and Harman Kardon Allure. Published data is always indicative and may contain errors or be subject to change. Always check official sources.