Robotic chessboards like Square Off are pretty popular these days. These types of automatic boards have been around for decades though. Take the Excalibur Mirage for instance: it is a chess robot with 100 levels that uses a robotic arm under the board to move the pieces.
This board was originally sold in the 90s. It runs on battery but can also be powered with an adapter. It can remember your games, provide hints, and verify position at any time. The level is around 1800 ELO, so it is not super strong but should be more than enough to challenge most people.