The Helios smart ring is unique in the world of smart intelligent micro wearables. The ring and its smartphone app provide real-time monitoring of the wearers’ exposure to UV light and offer suggestions for skin protection and a healthier lifestyle. The stakes were high: accurate sensing, wireless charging, high battery performance and water tightness in the smallest possible package. We were fortunate to work with some of the best partners in the electronics and manufacturing industry. The design of Helios is demonstration of simplicity and style in which the boundaries of precision engineering were pushed to the very limit. It comes in 12 different sizes and a custom designed intelligent wireless charger. The world’s first personal vitamin D tracker made its debut at the CES electronics fair in Las Vegas.