Occasionally, you may see gaps in your Nighttime, Daytime, or Activity Heart Rate graphs. See below for troubleshooting tips.
Gaps in Nighttime Heart Rate
Gaps in 24-hour Heart Rate Graph
Gaps in Activity Heart Rate
Gaps in Nighttime Heart Rate
If you spot gaps in your nighttime resting heart rate (RHR) or heart rate variability (HRV) graphs, something may have interfered with your pulse monitoring.
Possible causes for these gaps are:
- 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
- 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
- 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 overnight data. See how to use Oura's Nighttime Movement feature to keep an eye on restlessness during your nights, as well as find a few tips for restless sleepers
- You slept in a position that caused your hand to go numb (causing partially blocked blood circulation)
- Your resting heart rate was exceptionally low (below 33 bpm)
- Arrhythmia, or an irregular heartbeat, resulted in incomplete data
Here’s how gaps might appear in the Oura App:
Gaps in 24-hour Heart Rate Graph
If you notice gaps in the 24-hour heart rate graph, check the following:
- 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
- Cold fingers can cause signal problems. Wearing gloves can help
Note: If you 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 (RHR) and heart rate variability (HRV) data, which may cause gaps in your graphs. In some cases, you might not see your heart rate and HRV data at all. For more information, read our article about Oura & Medical Conditions.
You can perform a soft reset to help reset the ring's sensors:
- Go to the My Devices page by tapping on the
menu in the upper-left corner or the battery
icon in the upper-right corner of the home screen
- On iOS, under Tools, tap Soft Reset
- On Android, swipe left > under Tools, tap Soft reset
After checking the sensors and ring fit, and completing the soft reset (if necessary), wear the ring for 24 hours to see if it correctly collects and syncs your daytime heart rate data. If it doesn't, contact us for assistance.
You can contact us here.
Gaps in Activity Heart Rate
Activity Heart Rate records heart rate across a selection of exercises, workouts, and other activities. If you see gaps in your Activity Heart Rate graph, check to see if any of the following apply:
- Cold skin or cold skin due to cold weather: Cold fingers can cause signal problems. Wearing gloves can help, but it's important to put the gloves on before going outside
- Finger selection: Wearing your ring on your index finger is ideal for good signal quality, and the middle finger is the second best
- Tightness: A snug fit is most important, regardless of which finger you’re wearing your Oura Ring. You can tell you have a snug fit if the ring resists when you try to rotate it
- Ring positioning: In order to get an accurate Activity Heart Rate measure, the sensors should be on the bottom of the finger (on the palm side of your hand)
