Ringconn Smart Ring, No App Subscription, Size First With Sizing Kit, 7-Day Battery Life Activity & Sleep Tracker/Stress/Heart Rate Monitor, 10

Oura Ring 4 - Stealth - Size 13 - Smart Ring - Size First With Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up

Oura Ring Gen3 Horizon - Silver - Size 9 - Smart Ring - Size First With Oura Ring Gen3 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness

Oura Ring Gen3 Horizon - Gold - Size 10 - Smart Ring - Size First With Oura Ring Gen3 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness

Oura Ring Gen3 Horizon - Black - Size 12 - Smart Ring - Size First With Oura Ring Gen3 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness