AI Smart Ring for Men & Women, No Subscription Fitness & Health Tracker, Sleep Tracking & Stress Insights, Heart Rate & SpO2, 5ATM Waterproof, Ceramic Design, Charging Case, Black, Size 9

Smart rings need a precise fit for the best sensor performance. We strongly advise using the sizing kit before your final purchase. A correct fit provides improved all-day comfort, highly dependable data tracking, and a fully seamless wearing experience. Unlike subscription-based smart rings, this product grants you complete access to all features with no monthly fees. Monitor your wellness, sleep, and daily activity without paying any extrano hidden costs and no premium paywalls. Supported by advanced AI algorithms, this ring analyzes your sleep patterns, HRV (Heart Rate Variability), and daily activity to provide personalized recovery advice and readiness trends. Understand your body better and easily optimize your daily routine. Made from micro-crystalline ceramic, it is significantly lighter than metal with a hardness similar to sapphire. Smooth, skin-friendly, and very scratch-resistant, this ring is carefully crafted for totally comfortable, round-the-clock wear. Enjoy more than 5 days of continuous use per single charge. The included 200mAh portable charging case supplies 10+ full recharges, offering weeks of total battery life while traveling. It is fully compatible with both iOS and Android devices