Android Central Follow Smart ring battle: Oura and Ultrahuman are in court again over a 'patent infringement' Oura has reportedly sued Ultrahuman for allegedly infringing on two of its patents regarding ring design and "internal components." https://www.androidcentral.com/wearables/oura-ring/smart-ring-battle-oura-and-ultrahuman-are-in-court-again-over-a-patent-infringement androidcentral.com
