What is the difference between Echo Dot and Alexa?

While the Echo measures at 9.3″ x 3.3″ x 3.3″ (235 mm x 84 mm x 84 mm), the Dot stands at 1.3″ x 3.3″ x 3.3″ (32 mm x 84 mm x 84 mm). ... Echo vs. Echo Dot. Amazon Echo Amazon Echo Dot It is a smart home device with a cylindrical-shaped design. It is basically a stripped version of the Echo without the speaker grille. 3 more rows