Introducing
Introducing Oura Ring 4 Ceramic
New finishes
Show your style with stunning new ceramic finishes.
Edit this body copy in the theme editor.
Ceramic like you've never seen
Midnight
A blue for every version of you. Deep and dynamic.
New finishes
Show your style with stunning new ceramic finishes.
Edit this body copy in the theme editor.
The science of self-care
What's Included
Everything you need in the box.
- Oura Ring 4 Ceramic
- Size-specific charger
- USB-C cable
- Ceramic Polishing Pad
Tech Specifications
Advanced in every way
Add an intro paragraph here.
Sensors
- Red and infrared LEDs measure blood oxygen levels
- Green and infrared LEDs alternate to measure heart rate and heart rate variability 24/7 and respiration rate
- Digital sensor measures temperature trends
- Accelerometer tracks movement and activity 24/7
Compatibility
- Oura App is available in English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, and Danish
- Supports metric and imperial units of measurement
- Integrates with 40+ apps
- Available on iOS and Android
Weight and Dimensions
- Width: 7.9 mm
- Thickness: 3.51 mm
- Weight: 5.1 - 8.1 g (depending on ring size)
Battery Life
- 5-8 days of battery life
- Typically charges in 20-80 minutes, depending on battery level
Quality Materials
- High-performance zirconia ceramic exterior
- Seamless titanium interior
- Water resistant up to 100m/328 ft
- Minor scratches from regular wear are normal
- Erasable scuffs may occur while handling metal objects
Connectivity
- Bluetooth Low Energy
- Automatic firmware updates via Oura App
- EMF-safe
- Supports airplane mode
- FCC-certified
Choose your finish
Choose your finish
Crafted in four stunning ceramic finishes.