Smart Rings for Men, Exclusive Vibration Alerts Ring with Fitness, Sleep Monitoring, Step Counting, HR Tracker Ultra-Thin, No APP Fee, 5ATM Waterproof AI Smart Ring for iOS & Android (Black, 9)

Discover Your Perfect Fit: Ultra-thin at 2mm and featherlight at 2.5g, it's virtually unnoticeable during exercise, sleep, or work. It employs a distinct sizing system, different from conventional rings. Order the sizing kit with your ring, or obtain the kit first to measure and secure the correct size from the start. 24/7/30 AI Auto Tracker: This 24-hour health monitoring ring automatically logs your heart rate, HRV, temperature, and blood oxygen every 30 minutes with 99% accuracy during sleep. Your all-day fitness tracker analyzes sleep, activity, health trends (daily/weekly/monthly), and AI Q&A, utilizing real-time data to provide personalized advice. No Subscription Fees: There are no monthly payments or hidden costs. Silent Notifications & Reminder: Gentle vibrations alert you to calls, alarms, WhatsApp, WeChat, Ins, SMS, medication, water, birthdays, anniversaries, and festivals. It's perfect for discreet reminders in meetings, next to your partner, or in the library. It provides real-time health alerts when abnormal heart rate, low blood oxygen, or high temperature is detected. Waterproof & Long Battery: With a 5ATM waterproof rating, you can swim, dive, surf, or shower with it. Enjoy 46 days of use from a 90-minute charge, plus 25 days of standby time and offline data storage. Multi-Sport Tracking: The activity monitoring ring records your steps, calories burned, and workout duration for running, walking, and cycling, whether you're on a treadmill or a trail. It offers a comprehensive performance assessment and assists in adjusting your goals with factual data