Technical specifications for OURA Ring 4 – Silver, Size 4
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 4
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
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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Robert F. –
Delivered within 24 hours of ordering . Friendly delivery staff .
Robert F. –
Maureen P. –
Very speedy delivery and very pleasant and helpful delivery!
Maureen P. –
Shirley B. –
All good thanks
Shirley B. –
Eddie D. –
Friendly delivery men. Delivered on time
Eddie D. –
Marian Y. –
Big thanks Lifestyle Home Appliances… Im really very happy to connect with Lifestyle Home Appliances. Support me alot to buy stuff for my family and home.
Marian Y. –
Creswell W. –
Great company as always, very reliable.
Creswell W. –
Diane M. –
Great selection, great pricing, great service, easy to order and delivered in a timely manner.
Diane M. –
Maarilyn S. –
Two guys was very helpful and friendly
Maarilyn S. –
Thomas N. –
Great price, fantastic delivery, second time bought from Lifestyle Home Appliances but it won’t be the last
Thomas N. –
Katie H. –
Both gentlemen was so helpful,polite never had service like it before credit to your company thank you
Katie H. –
Teresa L. –
Good communication regarding time of delivery
Teresa L. –