Oura
Ring 5
Oura Ring 5 is a titanium smart ring for tracking sleep, activity, and health metrics with precision.
Made in
Oulu, Finland
Warranty
Two years
Materials
Titanium exterior, titanium interior
First produced
2022
On the object
The Oura Ring 5 offers a sleek, titanium design for precise tracking of sleep, activity, and health metrics, underscoring its commitment to accuracy and durability.
Who it's for
- Sleep optimization
- Activity tracking
- Health monitoring
- Minimalist design enthusiasts
Who should skip
- Budget-conscious buyers
- Users seeking extensive smartwatch features
- Those who prefer wrist-worn devices
The trade-off
While the Oura Ring 5 excels in its core functionalities, users may find its limited display options and reliance on a paired device for detailed insights a drawback, especially if they seek standalone smartwatch capabilities.
Specifications
Research
- PubMedSleep medicine· 2024
Validity and reliability of the Oura Ring Generation 3 (Gen3) with Oura sleep staging algorithm 2.0 (OSSA 2.0) when compared to multi-night ambulatory polysomnography: A validation study of 96 participants and 421,045 epochs.
“This study validates the Oura Ring Generation 3's sleep staging algorithm against polysomnography, directly supporting the Oura Ring's claims about sleep tracking accuracy.”
- PubMedOTO open· 2025
The Oura Ring Versus Medical-Grade Sleep Studies: A Systematic Review and Meta-Analysis.
“This systematic review evaluates the Oura Ring's validity in measuring sleep parameters compared to medical-grade studies, directly supporting its claims about sleep tracking.”
- PubMedJournal of medical Internet research· 2022
Accuracy Assessment of Oura Ring Nocturnal Heart Rate and Heart Rate Variability in Comparison With Electrocardiography in Time and Frequency Domains: Comprehensive Analysis.
“This study assesses the accuracy of the Oura Ring's nocturnal heart rate and heart rate variability measurements, validating its physiological tracking capabilities.”
- PubMedBMC medical research methodology· 2023
Validation of Oura ring energy expenditure and steps in laboratory and free-living.
“This study validates the Oura Ring's step-count and energy expenditure measurements against indirect calorimetry, supporting its claims about activity tracking.”
- PubMedSensors (Basel, Switzerland)· 2022
A Validation of Six Wearable Devices for Estimating Sleep, Heart Rate and Heart Rate Variability in Healthy Adults.
“This validation study examines the Oura Ring Generation 2's accuracy in assessing sleep, directly relevant to its marketed sleep tracking features.”
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