Oura Ring 3rd Generation US8 Size 8 Heritage Stealth Black - Brand: Oura - Model Name: Oura Ring - Included: Charging dock, charging cable, box Includes charging dock and box. Selling due to the purchase of gen4. There are scratches from use. The battery lasted from morning to night. Sometimes the battery would die while sleeping. The battery life has deteriorated from when it was new, so please understand before purchasing.