The first 'smart displays' running Google Assistant were released last year, including Google's own Home Nest Hub . They're all 7-10 inches across, with enhanced functionality over audio-only speakers.
Design The Lenovo Smart Clock is covered in fabric, and won't take up much space on your bedstand; Google Assistant The world's best digital assistant is here.
Questionable utility The screen isn't used for much else than displaying the time and media controls — it can't even display images from Google Photos on the clock face; Price The Google Home Mini is less than half the price of the Smart Clock, but it can do almost everything the clock can do.