Quality Materials
- Premium Material: Non-allergenic titanium on both inner and outer surfaces
- Seamless Design: Smooth titanium interior for a comfortable fit
- Durability: Minor scratches from regular wear are normal over time
- Water Resistance: Withstands depths of up to 100m (328 ft)
Battery Life
- Long-Lasting Battery: Up to 8 days of power*
- Quick Charging: Recharges in 20–80 minutes, depending on battery level
Weight and Dimensions
- Width: 7.90mm
- Thickness: 2.88mm (comparable to a wedding band)
- Weight: 3.3 to 5.2 grams (varies by ring size)
Compatibility
- Languages: Oura App is available in English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, and Danish.
- Measurement Units: Supports both metric and imperial systems.
- App Integrations: Compatible with 40+ apps.
- Device Compatibility: Available on iOS and Android.
Connectivity
- Connectivity: Bluetooth® Low Energy for efficient performance
- Updates: Automatic firmware updates via the Oura App
- Safety: EMF-safe with an optional Airplane Mode
- Certification: FCC-certified for compliance and reliability
Sensors
- Blood Oxygen Monitoring: Red and infrared LEDs track SpO2 levels while you sleep.
- Heart & Respiration Tracking: Green and infrared LEDs measure heart rate, heart rate variability (24/7), and respiration rate during sleep.
- Temperature Sensing: A digital sensor monitors temperature variations.
- Activity Tracking: An accelerometer records movement and activity 24/7.