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. 
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