Technical specifications for OURA Ring 4 – Stealth, Size 9
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 9
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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Tracey A. –
Great, was kept up to date about delivery via emails then phone call off driver with a time , would recommend
Tracey A. –
Victor A. –
Delivery abit later than I thought as they drove by my house
Victor A. –
Diana H. –
My third appliance from LifestyleHomeAppliances.co.uk and honestly if I ever need anything else I’ll be going there. I signed up for their 5 star membership for £40 and have saved £110 on things I would’ve bought and paid for anyway. They definitely have great customer service, and actually you’ll probably never have to use it because their purchase and delivery organiser works so well.
Recommended. Also used the EXTRA10 discount code for an extra saving.
Diana H. –
Schirin D. –
Quick, easy delivery and lovely customer service
Schirin D. –
Richard F. –
Problems solved, all carried out well and great with customer
Richard F. –
Richard W. –
Ease of ordering online, good communication, delivered at the time stated, polite helpful delivery staff, placed in the room requested, great service!
Richard W. –
Steve F. –
Super quick delivery and the delivery men were very helpful!
Steve F. –
Julie K. –
Friendly delivery people, rang twice to confirm time, arrived when stated.
Julie K. –