NEW Oura Ring 4 Black Size 7 – Smart Health & Sleep Tracker – Sealed Box
• Model: Oura Ring 4 (4th Generation). ✔️ Oura Ring 4 Black (Size 7). ✔️ Oura Ring 4 Black, Size 7. ✔️ Oura USB-C Charging Set. • Water Resistance: 100m (Shower, pool, sauna safe). • Connectivity: Bluetooth Low Energy.