Smart Rings for Men, Ultra-Thin Sleep Tracker Ring, Waterproof Health Tracker Ring with Heart Rate, Blood Oxygen, Sleep, Step Count, Daily Reminders No APP Fee for iOS & Android(Gold, 10)

Find Your Perfect Fit: Ultra-thin at 2mm and featherlight at 2.5g, it is comfortable to wear during exercise, sleep, or work. This smart ring uses a unique sizing standard different from regular rings. Order the sizing kit with your ring, or get the kit first to measure and obtain the correct size from the beginning. 24/7/30 AI Auto Tracker: This 24-hour health monitoring ring automatically records your heart rate, HRV, temperature, and blood oxygen every 30 minutes while you sleep. Your all-day fitness tracker analyzes sleep, activity, health trends (daily/weekly/monthly), and provides AI Q&A utilizing real-time data to offer personalized advice on sleep and exercise. No Subscription Fees: No monthly payments, no hidden costs. Silent Notifications & Reminder: Gentle vibrations alert you to calls, alarms, WhatsApp, WeChat, Ins, SMS, medication, water intake, birthdays, anniversaries, and festivals. Ideal for discreet reminders in meetings, beside your partner, or in the library. It provides real-time health alerts when it detects an abnormal heart rate, low blood oxygen, or high temperature. Waterproof & Long Battery: With a 5ATM waterproof rating, you can swim, dive, surf, or shower with it. Achieve up to 46 days of use on a 90-minute charge, plus 25 days of standby and offline data storage. Multi-Sport Tracking: This activity monitoring ring records your steps, calories burned, and workout duration for running, walking, and cycling whether on a treadmill or a trail. It provides a complete performance assessment to help adjust your goals with real data