Here is a smart pixel art clock and flip timer with 4 LED screens that can show you the time and weather. It can also show custom messages. The Pixeltime lets you set a timer by just flipping it over, so it is easy to use for the Pomodoro technique. It has 1024 full-color LED nodes and Bluetooth 5.0.
Pixeltime combines with your phone to let you easily upload pixel arts. It automatically syncs time to your phone. It even has a music sync function. The device lasts up to 20 hours on battery. You can find out more about it here.