Help Centre

Luna Smart Ring Gen 2 Troubleshooting Guide

The Luna Smart Ring Gen 2 Troubleshooting Guide helps resolve common issues including charging problems, Bluetooth connectivity, syncing issues, and data accuracy concerns. If your Luna Ring is not charging, not syncing with the app, or tracking data incorrectly, the solutions below will help restore performance quickly.

Luna Ring Not Charging

The Luna Smart Ring Gen 2 battery typically lasts up to 7 days per charge, depending on usage. To charge your ring, place it correctly into the charging case and ensure the case itself has battery power. A full charge takes approximately 90 minutes.

If your Luna Ring is not charging:

  • Ensure the ring is seated correctly in the charging case
  • Check charging contacts are clean and free from debris
  • Confirm the charging case has sufficient power
  • Try reconnecting the charging cable or power source

Luna Ring Not Connecting or Syncing

The Luna Ring connects to your smartphone via Bluetooth through the Luna mobile app. If your ring is not syncing or connecting:

  • Confirm Bluetooth is enabled on your phone
  • Restart both your phone and Luna Ring
  • Ensure the Luna app is updated to the latest version
  • Move the ring closer to your phone when syncing

If problems continue, try re-pairing the ring through the app settings.

Inaccurate Health or Sleep Data

For accurate heart rate, sleep, and recovery tracking, the ring must fit snugly and comfortably. Wearing the ring loosely or switching fingers frequently can reduce accuracy.

For best results:

  • Wear the ring consistently on the same finger
  • Ensure sensors remain clean
  • Recalibrate the ring within app settings if needed

Luna App Crashing or Freezing

If the Luna app becomes unresponsive or crashes:

  • Restart the app
  • Restart your phone
  • Reinstall the app if performance issues continue

This usually resolves most software-related problems.

If your issue is not listed here, please refer to the how-to videos below or contact customer support for assistance.

How to Pair Your Ring

Step-by-step instructions to pair your Luna Ring with the mobile app for the first time.

Connectivity Issues

Troubleshoot common connection issues between your Luna Ring and the mobile app to restore syncing and tracking.

How to Re-pair Your Ring

Learn how to reconnect your Luna Ring to your device if pairing has been lost or you are switching phones.

Check if Your Ring is Charging

A quick guide to confirming your Luna Ring is charging correctly when placed in the charging case.

Ring Charging Check

Simple steps to ensure your Luna Ring is charging properly and receiving power from the charging case.

Charging Case Indicators

Understand what each charging case light indicator means so you can easily monitor charging status and battery levels.

Charging Case Charge Check

Learn how to quickly check the battery level of your Luna Ring charging case to ensure your ring is ready to charge whenever needed.

Sensor Check

Learn how to check that your Luna Ring sensors are clean and working correctly for accurate health tracking.

Overheating

What to do if your Luna Ring or charging case becomes warm, and how to safely resolve overheating concerns.