Amazon Echo Dot (4th gen) review: The new Dot delivers a revamped look and (slightly) better sound

The revamped, fourth-generation Echo Dot has arrived, and it comes with a spherical design that sets it well apart from its smaller, flatter predecessors. But while it boasts an all-new look, the latest Echo Dot is essentially the same speaker as the (now steeply discounted) third-gen Dot, complete with onboard Alexa, stellar smart home capabilities, impressive communication features, and the ability to keep an ear on your home via Alexa Guard. And while we're pleased with how the new Dot sounds, its front-firing driver doesn't deliver a quantum leap over the older Dot's audio quality. So yes, the fourth-gen Echo Dot is technically the best Dot yet, but only by a narrow margin. Available in charcoal, glacier white, and twilight blue flavors, the fourth-gen Echo Dot marks a major departure in terms of the speaker's look and feel.