https://www.techradar.com/news/amazon-echo-dot-2018

You might as well wait for the Amazon Echo Dot 2018 release date before buying the entry-level smart speaker from Amazon.com. It comes out next month.

This is the new version of the cheap Alexa-powered Echo speaker from the company, retailing for $49.99 (£49.99) and offering a better design along with new features.