Oura Ring 4 Size 8 Brushed Silver - Brand New Sealed

Brand-new, unopened Oura Ring 4. The ring in the photo is for reference only - it's my old ring. The item for sale is sealed. * Size: 8 * Finish: Brushed Silver * Factory sealed - never opened or activated * Purchased directly from Oura Tracks sleep, recovery, readiness, heart rate, stress, activity and more through the Oura app. https://ouraring.com/product/rings/oura-ring-4 #Oura #OuraRing #OuraRing4 #SmartRing #HealthTracker #SleepTracker #Recovery #HeartRate #Wellness #FitnessTracker #Biohacking #Wearable #SmartWearable #Sleep #RecoveryScore #StressTracking #HRV #AppleHealth #Garmin #Whoop #Ultrahuman #SamsungRing #SmartRingPL #InteligentnyPierścień #MonitorSnu #Zdrowie #Fitness #WearableTech #Tech