Feature:1. Smart Ring for Instant Photo: The smart ring could easily capture beautiful moments anytime, anywhere with innovative design. Take selfies to new heights with a simple gesture. Remote control the ring for effortless photography.2. Comprehensive Sports Modes: The fitness ring support various regular sports and map track sports like walking, running, cycling, etc. Easily check time, distance, calories on the mobile app post workouts for health and fitness analysis.3. Long Standby: 20mAh battery with energy saving technology, the health ring ensures 7 day continuous monitoring on a single charge without interruptions, greatly enhancing ring's battery life performance.4. Lightweight Aluminum Alloy Material Design: The health tracking ring adopts lightweight aluminum alloy material for long lasting comfort and a seamless blend of smart wearables into daily life with a tech savvy feel.5. 50 Meters Water Resistant: The health ring adopts fully sealed structure with 50 meters water resistant technology supports swimming, diving, or snorkeling up to 50 meters deep to meet various water resistant needs.Specification:Item Type: Smart RingMaterial: Aluminum AlloyBattery: 20mAh lithium Battery (Built in)Battery Life: Approx. 5 daysCharging Time: 60 minutesApp: for JYOUPRO.Package List:1 x Smart Ring1 x Charging Cable1 x User Manual