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About This Item: 

• Size Before Purchase: Use the FKGZJF Sizing Kit to find your perfect fit before buying. The smart ring follows US ring sizing standards, ensuring accuracy and comfort while avoiding return hassles.
  
  

• Smart Sleep Tracker: Tracks sleep stages, duration, and quality (deep and light sleep) automatically. View daily, weekly, and monthly graphs in the app to improve your sleep habits.
  
  

• 24-Hour Health Monitoring: Provides continuous tracking of heart rate, blood oxygen, and HRV. Real-time data is viewable anytime via the connected app for deeper health insights.
  
  

• Activity Tracker: Automatically records steps, distance, and calories burned throughout the day for effortless fitness tracking.
  
  

• Multi-Sport Modes: Includes modes for running, cycling, walking, yoga, golf, dancing, hiking, and more, offering detailed stats like speed, time, and calories burned for guided workouts.
  
  

• No Subscription Fees: Enjoy lifetime free access to all app features—no hidden costs or recurring payments required.
  
  

• Long Battery Life: Runs up to 3–5 days per charge, with a 400mAh charging case providing up to 15 full recharges, extending total use time to about 60 days.
  
  

• Portable Charging Case: Compact design allows convenient recharging on the go, ideal for travelers and outdoor users who need uninterrupted health tracking.
  
  

• Easy Charging & Compatibility: Supports magnetic USB and Type-C charging, compatible with Android 4.4+ and iOS 8.4+ devices.
  
  

• Complete Package: Includes smart ring, charging case, magnetic USB cable, Type-C cable, and user guide, making it a thoughtful gift for men and women seeking smart wellness.

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