Oura Ring raises €5 million to take its smart jewelry mainstream

The Oura Ring monitors a wearer's sleep quality.

A Finnish startup called Ōura Ring has closed a series A round of €5 million to ramp up production of its smart, health-monitoring jewelry. Oura Ring’s Series A backers included MIT Media Lab Director Joi Ito, Jaan Tallinn who was Skype’s founding engineer and a cofounder of Kazaa and the Future of Life Institute, along with other finance professionals and tech entrepreneurs… Read More