Enchanted Enamel Smart Ring – Titanium, Waterproof, Sleep & Health Tracker

💍 Duobuy Smart Ring – Key Features 🌡️ 24/7 Health Monitoring Track heart rate, blood oxygen, and blood pressure in real-time — anytime, anywhere. 😴 Advanced Sleep Tracking Automatically records deep and light sleep, fall-asleep and wake-up times, and offers weekly reports to help improve your sleep habits. 🏃 Activity & Multi-Sport Modes Monitor steps, calories, distance, and workout routes. Supports running, cycling, yoga, golf, hiking, and more. 🔋 Long Battery Life + Charging Case 3–5 days on a single charge. Includes a 400mAh charging case for up to 60 days of extended use — perfect for travel. 📱 Free Lifetime App Access No subscription fees. All data syncs to the app for lifetime use at no extra cost. 💎 US Ring Sizing Standard Fits true to US ring sizes. We recommend purchasing the Duobuy Sizing Kit to ensure your perfect fit.