Amazon is expanding the Echo Show family. Starting today, consumers in the US can pre-order a new 8-inch model of the company's popular smart display speaker. The $129.99 variant joins the $89.99 Echo Show 5 and the $229.99 second-generation Echo Show, giving you the choice between a 5.5-inch, 8-inch or 10-inch screen. The Echo Show 8 combines the best of Amazon's past smart displays. It features the same screen and sound capabilities of the Echo Show, as well as as the camera shutter and form factor of the Echo Show 5.