Oura launches new social, sleep features as health tracker market continues to grow

Oura, the company behind the smart ring that allows users to track a variety of biometric data, is adding new features around social sharing and sleep tracking as the battle among tech companies to land and keep trackers on the wrists and fingers of consumers continues.

The company’s new community-sharing feature, which it calls Circles, allows ring wearers to create private groups where they can share readiness, sleep, and activity…