Feature:1. Multifunctional Monitoring: The smart ring offers multiple functionalities including sleep tracking and step counting. With advanced sensors, it keeps a thorough record of your body condition, enabling you to monitor the data anytime, anywhere.2. Fashionable and Comfortable: Crafted from high strength stainless steel, the smart fitness ring combines elegant design with polished ceramics, offering a lightweight, stylish, and comfortable wearable experience.3. Energy Efficient Technology: The energy saving technology ensures 7 days of continuous work on a single charge. It is compatible with for Android and for iOS systems, allowing you to conveniently check your data whenever you want.4. Promote Active Lifestyle: By recording and analyzing your health data, the Smart Ring motivates you to opt for a better lifestyle. It helps maintain your vitality, balance and is great for those passionate about fitness and mindful of their sleep.5. Water and Dust Resistant: Boasting an IP68 grade for water and dust resistant, the sports ring is ideal for various water related activities, such as handwashing, showering, and swimming. Wear it anytime and keep track of your body data without any worry.Specification:Item Type: Smart RingMaterial: Stainless SteelColor: SilverRing Battery Type: Built in batteryRing Battery Capacity: 20mAhRing Battery Life: Approx. 7 daysRing Charging Time: Approx. 45 minutesCharging Case Battery Information: 300mAh Battery (Built in battery)Waterproofing Level: IP68APP: For Smart Health.Package List:1 x Smart Ring1 x Charging Case1 x Charging Cable1 x User Manual