Feature: 1. SUPERIOR PERFORMANCE: The smart ring uses cutting edge technology for accurate data monitoring and smart manufacturing. Stylish, minimalist and generous, it performs exceptionally well in both appearance and hardware, compatible with for iOS and for Android Seamless synchronization with for IOS Health. 2. SLEEP INDEX: Designed to help you understand the various stages of sleep such as deep sleep, rapid eye movement sleep, light sleep and wakefulness, different metabolic processes occur in the body during the different stages of sleep to promote growth, repair, restoration and maintenance, a comprehensive understanding of the sleep behavior and body state. 3. SMART RING: Experience a variety of exercise activities, both indoor and outdoor, through the smart ring app. Easily track steps, distance, calories and pace while wearing the smart ring. Analyze map path tracking and detailed workout data to improve your performance and exceed your limits. 4. ALL DAY MONITORING: The smart ring uses energy saving technology to ensure 3‑5 days of continuous monitoring without recharging. Comfortably and accurately view your health discreetly from workouts to nights out. Made of polished stainless steel, it is easy to wear, sturdy, lighter than a typical ring, non allergenic and water and sweat resistance. 5. SMARTPHONE CAMERA REMOTE CONTROL: This compact ring doubles as a remote shutter release, allowing you to take selfies or group photos without help. It can be used to take the perfect photo on the go even when you're alone. 6. REINVENT A HEALTHY LIFE: By recording and analyzing your health data, the smart ring will motivate you to adopt better life choices to stay healthy, energized and balanced. Whether you're passionate about fitness, sleep focused, or want to manage stress effectively, the smart ring provides tailored advice and guidance. Specification: Item Type: Smart Ring Material: Stainless Steel Ring Battery: Polymer Lithium Ion Battery (Built In) Capacity: 18mAh Bluetooth Version: BT5.1 Operating Time: 5-7 Days Charging Time: 1H Waterproof Rating: IP68 Charger Requirement Specification: Charging 1A or less than 1A APP: Q Ring (for Android, for IOS Store Download or Cell Phone Scanning Manual QR Code Download) System Requirements: for Android: 5.1 or Above for iOS: 8 or Higher Functions: Remote Control to Take Pictures, Multiple Exercise Modes, Sleep Monitoring (Sleep Time, Sleep Quality), Pedometer, Synchronized Data for IOS Health, App and Other Functions Supported Languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Polish, Thai, Estonian, Swedish, Lithuanian, Chinese (Simplified), Chinese (Traditional), Romanian, English, Dutch, Portuguese, Spanish, Chinese (Simplified), Chinese (Traditional), Chinese (Simplified), Chinese (Traditional), English (Simplified), Chinese (Simplified), Dutch, Portuguese, Spanish, Chinese (Simplified), Chinese (Simplified) Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay. Package List: 1 x Smart Ring1 x USB Cable1 x Manual Note: Manual measurement please allow some error.