Features 1、MULTIPLE SPORTS MODES: Supporting a variety of sports modes, such as running, cycling, swimming, etc., it can record sports data in real time and help users achieve better fitness results. 2、WATERPROOF: With good waterproof performance, users can wear it in water related environments such as hand washing and swimming without worrying about being affected by sweat or water during exercise. 3、SMART HEALTH COMPANION: Smart ring is the ideal health companion for users, enabling them to know their exercise status and health condition, suitable for both men and women. 4、PREMIUM MATERIALS: Made of high strength stainless steel and ti alloy materials, it is well made and has good durability, which can be used for a longer time. 5、COMFORTABLE TO WEAR: This smart ring is made of skin friendly material and is lightweight, so it will not cause discomfort even if you wear it for a long time, and it will not bring you any burden. Specifications Item Type: Smart Ring Material: Ti Alloy, Stainless Steel Weight: Approx. 80g / 2.8oz Battery Type: Lithium Battery (Built In) Battery Model: 170725 Battery Capacity: 18mAh Diameter: 2.5cm / 1in Package List 1 x Smart Ring 1 x USB Data Cable 1 x English Manual