• Size Before You BuyBefore purchasing the Smart Ring, we highly recommend referring to the size chart and measuring your finger circumference to ensure the most comfortable fit and avoid unnecessary returns or exchanges
• Real-time Health MonitoringThe slim ring has the New 4.0 sensors that track heart rate, blood oxygen, blood pressure and other data in 24 hours a day. It helps you track health data while providing a more complete wellness management experience
• Intelligent Sleep TrackerThe fitness ring automatically monitors your sleep quality. It can record deep & light sleep duration, eye movement, and wakefulness. You can view various indicators anytime in the app and adjust your lifestyle based on reports
• 8 Sports Modes TrackingSuch as Running, Cycling, Skipping Rope, Walking, Hiking, Yoga, Dancing, and Golf. The smart ring automatically tracks the workout route, sport time, steps, heart rate, speed, calories burned, and distance in the app
• Sport & Fitness Stylish PartnerUpgraded to a slim 2mm thickness with a specially polished inner surface,making it comfortably suited for most sports.Activate sports modes to receive data from the app, helping you achieve more effective guidance
• Long Battery & Wide Compatibility This smart aura ring lasts 3-5 days on a 1-2 hour charge. It is compatible with Android 5.0 and iOS 9.0
• Explanation: Neither the product nor its accessories contain button cell batteries.