Oura Ring Metrics Guide
Understand all 35 health metrics tracked by your Oura Ring. Educational reference for interpreting your wearable data.
Sleep
12 metrics · Metrics related to sleep quality, duration, and stages
Total Sleep Duration
In ReportTotal amount of sleep time, excluding awake periods
Deep Sleep Duration
In ReportDuration of deep (N3) sleep stage
REM Sleep Duration
In ReportDuration of REM (rapid eye movement) sleep stage
Light Sleep Duration
In ReportDuration of light (N1 and N2) sleep stages
Sleep Efficiency
In ReportPercentage of time in bed actually spent sleeping
Sleep Latency
In ReportTime taken to fall asleep after going to bed
Sleep Score
In ReportOverall sleep quality score combining multiple factors
Restless Periods
Number of restless or movement periods during sleep
Awake Time
Total time spent awake during the sleep period
Time in Bed
Total time spent in bed from bedtime to wake time
Bedtime
Timestamp when you got into bed
Wake Time
Timestamp when you got out of bed
Cardiovascular
6 metrics · Heart-related metrics including heart rate and HRV
Heart Rate Variability (HRV)
In ReportAverage heart rate variability during sleep measured in milliseconds
Resting Heart Rate
In ReportLowest heart rate recorded during sleep
Average Heart Rate
In ReportAverage heart rate during sleep
Lowest Heart Rate
In ReportThe lowest heart rate recorded during the night
Cardiovascular Age
In ReportEstimated cardiovascular age based on metrics
VO2 Max
Estimated maximum oxygen consumption during exercise
Respiratory
3 metrics · Breathing and oxygen-related metrics
Respiratory Rate
In ReportAverage breaths per minute during sleep
Blood Oxygen (SpO2)
In ReportBlood oxygen saturation percentage measured during sleep
Breathing Disturbance Index
In ReportIndex measuring breathing irregularities during sleep
Readiness
3 metrics · Recovery and readiness indicators
Readiness Score
In ReportOverall readiness score indicating recovery and preparedness
Temperature Deviation
In ReportDeviation from personal baseline body temperature
Recovery Index
In ReportContributor score measuring how well resting heart rate stabilized
Activity
8 metrics · Physical activity and movement metrics
Activity Score
In ReportOverall activity score based on movement and exercise
Steps
In ReportTotal step count for the day
Active Calories
In ReportCalories burned through physical activity
Sedentary Time
In ReportTime spent in sedentary activities
High Activity Time
In ReportTime spent in high-intensity activities
Medium Activity Time
Time spent in medium-intensity activities
Low Activity Time
Time spent in low-intensity activities
Total Calories
Total calories burned including basal metabolism
Stress & Resilience
3 metrics · Stress and resilience measurements
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