https://www.cnet.com/news/lenovo-smart-clock-google-assistant-ces-2019/

Representatives from Lenovo and Google were both clear that they view this as a new category of device, separate from a full-sized smart display. Indeed, while I thought at first that it would just be a shrunk-down version of Lenovo's own Smart Display, and while it's similarly built with Android Things -- Google's trimmed down operating system meant for smart home gadgets -- the Smart Clock's screen is much more streamlined, designed specifically to fit on your nightstand.

Unlike smart displays, the Smart Clock won't be able to play videos, display pictures, show you the steps of a recipe or pull up a smart home control screen. It also doesn't have a camera. By contrast, Amazon has a similar smart alarm clock with a display called the Echo Spot, but it does have a camera and is much more like a miniaturized version of a smart display.