Condition: Brand New / Never Worn Finish: Silver Model: Generation 4 (Latest Model) Size: 10 Original Price: $349 + tax Up for sale is a brand-new, pristine Oura Ring 4 in the classic Silver finish. This is the latest generation from Oura, featuring the upgraded Smart Sensing technology for better accuracy across more finger shapes and skin tones. I purchased this recently, but it is the wrong size for me. The ring has never been worn and is in perfect functional and cosmetic condition. Why choose the Oura Ring 4? Improved Accuracy: The Gen 4 has more signal paths than the Gen 3, making it the most accurate sleep and activity tracker on the market. Fully Recessed Sensors: The interior is now smooth and more comfortable for 24/7 wear. Battery Life: Up to 8 days of battery on a single charge. Discreet Design: Looks like a high-end piece of jewelry while tracking HRV, Sleep, Activity, and Stress. Water resistant up to 100m/328 ft What’s Included: - Oura Ring 4 (Silver, Size 10) - Original Charging Hub & USB-C Cable - Original Packaging/Box Clean, smoke & pet free home. Tags: Heart Health Women’s Health Activity & Movement Sleep & Rest Stress Metabolic Oura Ring for natural cycles and pregnancy tracking Apple Watch for sleep tracking accuracy sleep apnea HRV and stress management Heritage Non-allergenic titanium on inner & outer surfaces