Oura Size 10 Oura Ring 4 Smart Ring

*Selling because it does not fit me* Oura Ring 4 smart wearable in black. Tracks sleep, activity, and readiness. Syncs with the Oura app for insights. Sleek, low-profile design for daily wear. It has a fully smooth titanium interior with recessed sensors, making it much more comfortable to wear day-to-day. On the glossy Black finish, it looks like a sleek piece of polished hematite or onyx jewelry.