Technical specifications for OURA Ring 4 – Brushed Silver, Size 15
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 15
Compatibility
– iOS 15.0 or later
– Android 9.0 or later
– Android 9.0 or later
Material
Titanium
CONNECTIVITY
Connectivity
Bluetooth Low Energy (BLE)
POWER
Battery type
Internal Lithium-ion battery
Charging method
Charging dock
Charge time
Up to 80 minutes
Battery life
Up to 8 days
FEATURES
Resistance
Water resistant to 100 m / 328 ft (not suitable for diving)
Health & fitness tracking
– Track steps
– Track distance
– Track calories
– Track heart rate
– Sleep monitoring
– Daytime stress
– Menstrual cycle tracking
– Blood oxygen
– Skin temperature
– 40+ activities
– Cardiovascular age
– Cardio capacity (VO2 Max)
– Readiness Score
– Illness detection
– Track distance
– Track calories
– Track heart rate
– Sleep monitoring
– Daytime stress
– Menstrual cycle tracking
– Blood oxygen
– Skin temperature
– 40+ activities
– Cardiovascular age
– Cardio capacity (VO2 Max)
– Readiness Score
– Illness detection
Sensors
– Barometer
– Gyroscope
– Heart rate monitor (HRM)
– Pedometer
– Reflectance pulse oximetry (SpO2)
– Temperature
– Gyroscope
– Heart rate monitor (HRM)
– Pedometer
– Reflectance pulse oximetry (SpO2)
– Temperature
GENERAL
Dimensions
– Width: 7.9 mm
– Thickness: 2.88 mm
– Thickness: 2.88 mm
Colour
Brushed silver
Weight
3.3-5.2 g (depending on ring size)
Manufacturer’s guarantee
2 years
Box contents
– Oura Ring 4
– Charging dock
– USB Type-C cable
– Charging dock
– USB Type-C cable







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Pauline H. –
Great service great employees FAR TOO MANY EMAILS
Pauline H. –
Peter L. –
Easy and on time
Peter L. –
Alan T. –
Just so easy from start to finish. Found this toaster and kettle on your site, please with reviews. Placed order received very quickly and well packaged. Very pleased with my purchase. Would recommend.
Alan T. –
Hazel W. –
Great experience
Hazel W. –
Tracey E. –
Excellent delivery team of two. Great communication too.
Tracey E. –
Grout K. –
On time
Very professional , pleasant chaps
Grout K. –
Rebecca D. –
Very friendly and helpful
Rebecca D. –
Nichola B. –
Clear easy website, straightforward ordering system, competitive prices and speedy delivery.
Nichola B. –
Karen N. –
Expertly delivered on time delivery men professional, good service
Karen N. –