The fourth-generation Echo is a near-sphere, measuring 5.2 inches tall and 5.7 inches wide, available in black, blue, or white. Amazon notes that the fabric and aluminum it uses in its Echo speakers are 100-percent recycled materials. It's a fun new design, and looks similar to Apple's forthcoming HomePod mini. The light ring has been moved from the top of the speaker to the base, providing a less direct glow that’s still recognizable by lighting up blue when you speak your chosen wake word for Alexa. The top panel holds buttons for Alexa, volume up, volume down, and mic mute. The back is home to the connector for the power adapter and a 3.5mm audio output. Underneath the fabric sits a 3-inch woofer and dual 0.8-inch front-firing tweeters, through which the Echo supports Dolby audio (but not Dolby Atmos surround sound like the Echo Studio, which features four drivers, including a 5.3-inch woofer). They’re the same size drivers as in the Echo Plus and the third-generation Echo, but w...