In this Smart Speaker table we can analyze the features between Riva Concert and Amazon Echo Sub. Amazon Echo Sub has a louder speaker than Riva Concert. The volume of the second product (Amazon Echo Sub) is greater than that of the first. Amazon Echo Sub is heavier than Riva Concert. Amazon Echo Sub is cheaper than Riva Concert. The two products are based on the same artificial intelligence software (Alexa). We provide here a summary designed for quick reading between Riva Concert and Amazon Echo Sub. Published data is always indicative and may contain errors or be subject to change. Always check official sources.