Technical specifications for OURA Ring 4 – Stealth, Size 8
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 8
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
Stealth
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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Paul H. –
Great range of products available; easy to order online and arrived on time. Helpful delivery staff – thanks!
Paul H. –
David R. –
Great service great delivery guys
David R. –
Jillian W. –
Easy ordering, great communication, very quick delivery, nice delivery guys, fantastic company, have used Lifestyle Home Appliances before and will definitely continue to use them
Thanks again for great service 👍🏼😁
Jillian W. –
Ben F. –
Very friendly service with a smile. Polite and helpful. Left clean and tidy. The goods arrived on time and I was able to track my delivery to the last minute which was helpful. Thank you!
Ben F. –
Charlotte L. –
Very friendly and efficient service from DPD an Lifestyle Home Appliances
Charlotte L. –
Lindsay M. –
Great helpful delivery guys.
Lindsay M. –
Ian W. –
Very impressed with the service. Definitely be using again.
Ian W. –
Vivienne B. –
After order it came when specified two helpful young men.
Vivienne B. –
Raymond C. –
Quick and easy to order with fast delivery tailored to work around my schedule. Would highly recommend Lifestyle Home Appliances
Raymond C. –
Marie L. –
ordering process simple, delivery personnel excellent
Marie L. –
Matt W. –
Quick and efficient order and very polite hardworking drivers thank you.
Matt W. –
Ibandalang P. –
Fast and efficient very friendly staff and also very professional
Ibandalang P. –
Alex C. –
Very quick and courteous.
Alex C. –