Chessnut boards are some of the smartest chessboards money can buy. The Chessnut Air+ is a wooden portable chessboard that lets you play on Lichess. It comes with Bluetooth connectivity and uses real-time LED lights to show you hints. It has solid wood pieces.
The Chessnut Air Plus supports various third party apps, including WhitePawn, Chess Dojo, and Chess for Android. This is the smaller version of the Chessnut Pro (540mm) measuring 33cm x 33cm.[where to find it]