My data synchronization gets stuck at 0% or any other %percentage, and/or the app closes / crashes during the sync

• Make sure your phone is not in Power Saving Mode, which can limit Bluetooth functionality.

• Try again by killing the app (swipe up from the background running apps) and restarting it.

• If not working, go to My Ring > Factory reset to delete corrupted data from the ring. Please note that after a factory reset, you will need to set up your ring again on the charger.

If that didn't solve it:

• Go to My Ring > Manage my devices > Tap the red ❌ > Delete the ring from your phone’s Bluetooth list.

• Then, reconnect the ring by setting it up as a new device in the app. Make sure to accept the pairing request pop-up.

If the app crashes directly at opening

It looks like there might be a problem with your app. Please clear the app's cache in your phone's app settings, or uninstall and then reinstall the app to fix it.

If that didn't solve it, there might be a compatibility issue:

Please reach out to the support team at https://www.circular.xyz/contact-us with the information below so we can investigate:

• Video screenshot of the crash
• Phone model
• OS
• Time of crash

Updated on: 29/10/2025