Technical specifications for OURA Ring 4 – Stealth, Size 11
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 11
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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Harriet T. –
The product was delivered on time and politely. It was sensibly packaged, easy to unpack and assemble. Plus, of course, excellent value for money.
Harriet T. –
Paresh P. –
Brilliant service
Paresh P. –
Timothy B. –
The delivery people weren’t quite as prepared as I expected. They borrowed our scissors to unpack the delivery as they didn’t have a sharp pair. Other than that, it all went as expected.
Timothy B. –
Amyc C. –
The 2 gents were polite and super efficient. Amazing service and just can’t believe how quick & easy everting was, huge thanks and will definitely recommend.
Amyc C. –
Celia A. –
This was my first time using LifestyleHomeAppliances.co.uk and from point of order through to delivery, my experience was great and would highly recommend this company
Celia A. –
Christopher A. –
I was getting timely updates and delivery was smooth and ontime.
Christopher A. –
Maxine H. –
Delivery persons very polite would recommend to a friend
Maxine H. –
Darren C. –
The lead delivery driver orchestrated the two young lads in a great manner. Can’t fault the delivering experience
Darren C. –
Johnson J. –
Arrived on time, professional driver
Johnson J. –
Graham T. –
Excellent service as usual Thanks
Graham T. –
Colin D. –
Good email and SMS comms, plus phone call to advise of more precise delivery timings closer to the time. Very attentive, thank you.
Colin D. –
Richard V. –
Great, fast efficient and very friendly!
Richard V. –