Feature: 1. HEALTH TRACKING: Smart health ring is fit for Android 5.0 and for iOS 9.0 or higher, utilizing cutting edge smart technology to track your health metrics in real time. It provides valuable insights into the factors influencing your overall health and fitness levels. 2. WIRELESS CHARGING: The device does wireless charging design, built in battery savings power out of the convenience of carrying, can be independently charged with the device 2 times. 3. SLEEP TRACKING: The smart ring health monitor assesses sleep quality by analyzing the distribution of REM sleep, light sleep, and deep sleep stages during the entire sleep cycle, offering tailored recommendations accordingly. 4. WATERPROOF DESIGN: The smart health ring boasts an IP68 waterproof rating, ensuring resistance to water, sweat, and dust. This allows for dependable functionality while engaging in activities such as swimming, showering, and other water based pursuits. 5. ACTIVITY TRACKER RING: This activity tracker ring helps you reach your fitness objectives by precisely tracking metrics such as running distance, calories expended, and active duration. By monitoring your progress throughout the day, you can stay informed about your achievements. 6. ALLOY: Intelligent ring is constructed with an alloy that is strong, durable, lightweight and comfortable to wear to ensure long lasting performance. Battery life is 7‑10 days of normal use. Specification: Item Type: Smart ring Material: Alloy Ring Battery: Lithium ion battery 18mAh (built in) Charging Case Battery: Lithium ion battery 320mAh (built in) Charging Method: Wireless charging (built in) Waterproof Level: IP68 Support System: Fit for Android 5.0 and above, fit for IOS 9.0 and above Support Bluetooth: BLE5.0 Standby Time: 3-5 days. Package List: 1 x Smart Ring 1 x Charging Case 1 x USB Charging Cable 1 x User Manual