This ring has been used and shows normal signs of wear and tear. Introducing the Oura Ring Generation 3 Activity Tracker in Silver, perfect for fitness enthusiasts of all levels. This unisex activity tracker is made of high-quality titanium material and features infrared and SpO2 sensors for accurate temperature and heart rate monitoring. With a battery life of up to 7 days, this activity tracker is suitable for both indoor and outdoor workouts, including gym and training, swimming, and running and jogging. The Oura Ring Generation 3 also features a water-resistant design, making it perfect for all types of weather. It is compatible with both iOS and Android operating systems and comes with features such as sleep tracking and distance measurement. This activity tracker is the perfect addition to your fitness routine and is sure to provide you with accurate and reliable measurements.