Question: what is the difference between an echo dot and an echo plus?
Answer: The Echo has a 0.6-inch tweeter, while the Echo Plus' tweeter is 0.8 inches. Compared to other Bluetooth and WiFi speakers on the market, that's nothing to write home about, but it provides a decent level of bass and resonance for listening to music and radio. The Echo Dot has even less in terms of audio power.