The Smart Ring Health Tracker is a sleek and elegant fitness tracker designed for both iOS and Android users. It provides accurate measurements for heart rate, calories, and distance, making it perfect for those looking to track their daily activities. With a battery life of up to 6 days and a water-resistant design, this activity tracker is suitable for both indoor and outdoor use. Its lightweight construction and Bluetooth connectivity make it convenient for running and jogging, while its health monitor features ensure you're staying on top of your fitness goals. This ring is size 8 and is silver. New in sealed box.