Technical specifications for OURA Ring 4 – Stealth, Size 10
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 10
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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Erika F. –
Straight forward, lovely
Erika F. –
Ryan A. –
Good delivery experience, the driver was polite. The product is average — works fine but feels a bit basic.
Ryan A. –
Nigel W. –
The main fitter was fab… very helpful and did a great job, thank you!
Nigel W. –
Thomas A. –
Fast delivery goods all ok
Thomas A. –
Lou E. –
Brilliant service, so easy. Can’t fault it, from ordering to delivery everything was great.
Lou E. –
Kirsty R. –
Delivery guys were very careful with our appliance going through the house. Great communication and fast delivery as always
Kirsty R. –
Angela M. –
Did exactly as they said and good value for money
Angela M. –
John P. –
Quick service
John P. –
David B. –
Very easy to buy. Quick delivery. I have used Lifestyle Home Appliances before for all my kitchen appliances. So I knew I would be pleased
David B. –