The idea of wearable tech, while fantastic, is nothing new. In fact, it’s centuries old. China Daily shared this picture of a functioning abacus ring that reportedly dates back to the 17th century, during the Qing Dynasty. It’s being manipulated with a needle because the beads are too small for clumsy fingers to handle. The delicate jewelry is smaller than a thumb!
It may be one of the first smart rings. The abacus is a tool used to complete calculations, and even though most people rely on computers and mobile devices to do math for them, the abacus is still used in some parts of the world – perhaps not on such a small scale though.