The Oura Ring Gen 4 Gold Size 8 is a high-quality activity tracker designed for runners and joggers. Its sleek gold color adds a touch of style while its advanced technology accurately tracks your activity and performance. The Oura Ring Gen 4 model is known for its precision and reliability, making it a valuable tool for fitness enthusiasts looking to improve their running experience. Used for a few months. Shows some wear on it. Battery does not last as long