Feature: 1. Sport Monitoring: Smart ring provides real time synchronization with your smartphone, accurately monitoring your physical activities to help you achieve your daily goals. It monitors various metrics including workout mode, distance, duration, calories burned, and steps taken. 2. Remote Care: Add your parents or loved ones to your friends list and keep an eye on their daily activity data. You can remotely view their steps, distance covered, calories burned, and sleep duration, helping you stay connected and informed about their well being. 3. Long Standby Time: The smart ring houses a powerful adsorbable coil, ensuring efficient charging. It takes approximately one hour to fully charge and can last up to 7 days on standby. 4. Waterproof and Reliable: With an IPX8 waterproof rating, our fitness smart ring promises convenient use. Wear it freely while showering, swimming or washing your hands. 5. Lightweight and Comfortable: Crafted from stainless steel, offers a balance between minimalism and durability. Weighing approximately 5g and boasting a 2.5 mm thickness, ensures a comfortable wearing experience. Specification: Item Type: Smart Ring Material: Stainless Steel + Resin Ring Battery Type: Lithium Battery, Ring Battery Capacity: 20mah (with built in battery for shipment) Battery Case Battery Type: Lithium Battery (with built in battery for shipment) Battery Case Battery Capacity: 300mah Ring Battery Life: About 5 days Ring Charging Time: About 30 minutes Thickness: About 2.5mm APP: for Smart Health. Package List: 1 x Ring 1 x Charging Case 1 x User Manual Note: Correct wearing: Wear it by connecting the optical sensor closely with the skin of the fingertip to ensure accurate data.