Do I need to buy anything with the echo dot?
The Echo Dot is a totally independent product in the Echo product line. You do not need any other Echo or Amazon product (like the Amazon Fire TV) to use the Echo Dot.
What is difference between Alexa and Echo Dot?
Echo vs. Echo Dot.
|Amazon Echo Dot
|It is a standalone smart device and a full-size smart speaker equipped with always-on Alexa.
|The Dot is just as smart as the original Echo but works best with an external audio system attached.
What’s the difference between Alexa and Echo?
Alexa is software, and Echo is hardware. When you buy an Amazon smart hub or any other Echo device, you’re getting both Echo (the device) and Alexa (the voice assistant that runs the device).