Oura Ring 4 Charger - Size 7 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days

The Oura Ring 4 Charger is the only way to charge your Oura Ring 4. Its fast, convenient, and easy. Your Oura Ring 4 typically charges fully in 20-80 minutes on the Oura Ring 4 Charger, depending on its current battery level. It comes with a USB-C to USB-C Oura Ring 4 Cable cord, intended to be supplied by an external 5Vdc supply that complies with IEC 62368-1 standard.