Brand new in sealed original packaging! Please ensure that size 9 is best for you using an Oura ring sizing kit (sold separately).

The Oura Ring 4 Activity Tracker Smart Ring in black, size 9, is a unisex fitness technology device that tracks indoor and outdoor activities. It features Bluetooth connectivity, a battery life of more than 7 days, and comes with a charger, USB cable, and information booklet. The ring is designed for use on the finger and has a sleek black design. The Oura Ring 4 offers a comprehensive fitness experience with its advanced tracking features and long battery life.