On this page we compare Amazon Echo Dot and Amazon Echo Sub. The speaker of the second product (Amazon Echo Sub) is more powerful than that of the first. Amazon Echo Dot takes up less space than Amazon Echo Sub. The second product appears to be heavier than the first. The second product (Amazon Echo Sub) is more expensive than the first. The artificial intelligence software (Alexa) is the same for both products. We provide here a summary designed for quick reading between Amazon Echo Dot and Amazon Echo Sub. Published data is always indicative and may contain errors or be subject to change. Always check official sources.