Every year, around 135 million babies are born and 80 million of them develop jaundice. Although the early stage of jaundice is harmless, it may cause neurological disorder or even death if it is not treated. We have developed a low-cost and non-invasive jaundice detector that can be used by anyone in the world. It is a small device that you hold on to the chest or forehead of a baby. The diagnosis of jaundice is delivered to your smartphone within seconds. We have achieved 93 percent accuracy in our latest pilot study at Karolinska Institute.