Featured interview: Oura CEO Tom Hale

<p>From Apple Watches to Fitbits, people have become used to wearable tech to track things like steps and sleep. In the health-tracker market the race to add new features and analytics is fierce. One of those competitors is Finland's Aura, which sells a ring that monitors your heart rate, sleep patterns, body temperature and more. The company says sensors on the ring provide more accurate measurements than a device worn on your wrist. Joining Julia to discuss is Oura CEO Tom Hale. </p><p>To learn more about how CNN protects listener privacy, visit cnn.com/privacy</p><p> </p...