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

Key Features

Chargers are size specific
Your Oura Ring 4 size can be found on the inside of your smart ring.

Charging time
Your Oura Ring 4 is fully charged in 20-80 minutes, depending on its current battery level.

Battery level in your Oura App
You can check the battery level by tapping the battery icon in the upper right-hand corner of the Home home tab.

Charge level before going to bed
It’s recommended that your Oura Ring 4 be charged to at least 30% before going to bed.

Connect with USB-C
Connect the USB cable to your charging dock and plug the other end into a power source, such as a USB wall plug, laptop, or power brick.

Learn all about notifications
When the LED turns green, your ring is fully charged. You’ll receive a push notification from your Oura App when charging is complete. This also applies for low battery notifications.

Troubleshoot your charger
If the LED doesn't light up, check to see that your charger’s cable is properly connected and your Oura Ring is positioned correctly, ensuring good contact between your Oura Ring and the dock.

Powercord compliance
The USB charging power cord is intended to be supplied by an external 5Vdc supply that complies with IEC 62368-1 standard.