Troubleshooting Gaps in Heart Rate Graphs

Gaps in Nighttime Heart Rate

If you spot gaps in your nighttime resting heart rate (RHR Icon_Heart.png) or heart rate variability (HRV Icon_HRV.png) graphs, something may have interfered with your pulse monitoring.

Possible causes for these gaps are:

  1. Your ring was too loose. Before going to bed, ensure your ring's LED sensors are underneath your finger and your ring fit feels snug. If your ring feels too loose, try wearing it on a different finger.
  2. The LED sensors were dirty. You can wash the sensors and your ring using water and soap. Dry the ring thoroughly with a soft cloth before placing it back on your finger.
  3. You were restless during the night. The Oura Ring picks up even the slightest of movements, so tossing and turning may lead to gaps in your data. Use Oura's Nighttime Movement feature to keep an eye on restlessness during your nights. In that article, you'll find a few tips for restless sleepers, which may help to alleviate consistent gaps in your overnight data. 
  4. You slept in a position that caused your hand to go numb (causing partially blocked blood circulation).
  5. Your resting heart rate was exceptionally low (below 33 bpm).
  6. Arrhythmia, or an irregular heartbeat, resulted in incomplete data.

Here’s how gaps might appear in the Oura App:


Gaps in Daytime Heart Rate (Gen3 only)

The Daytime Heart Rate feature works best in low-motion situations like office work. When the ring reflects too much movement, this can result in erroneous data (e.g. gaps in the daytime heart rate graph). Due to the sensitivity of the Oura ring, even lighter motion, if it is constant, can cause gaps in our data.

For example, typing on the keyboard typically isn't too much motion, but walking a dog likely is. In order to preserve the battery life, Oura only begins recording Daytime Heart Rate data when these measurement conditions are met. If your goal is to track your heart rate during an activity, the Workout HR feature (available in 2022) is more suitable for this application.

If the gaps continue, please try out the following suggestions:

  • The ring's sensors may be too far from your skin for a clear signal. Switching fingers may help for a snug fit.
  • The sensors may be dirty. A quick rinse could clear it up.

Please note: If you happen to have a heart condition, low blood pressure, or any other health issue that causes arrhythmia, the Oura App may not be able to show your total resting heart rate and heart rate variability (HRV) data. In this case, you may notice gaps in your heart rate and HRV graphs. In some cases, you might not see your heart rate and HRV data at all. For more information, you can read: Can I use the Oura Ring if I have a medical condition?

If the ring fit is snug and the ring's sensor condition is good, as a next step, let's perform a soft reset to help reset the ring's sensors.

Please follow the steps below to get started with the Soft Reset:

  1. Tap the ring icon in the upper right-hand corner of the Home tab.
  2. Swipe left to the page titled "My Oura ring."
  3. Tap "Soft reset."

After reading through this article and completing the soft reset (if necessary), please wear the ring for 24 hours and see if it correctly collects and syncs your Daytime Heart Rate data. If it doesn't, please reach out to our support team for assistance.

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