Technical specifications for OURA Ring 4 – Black, 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
Black
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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Luke R. –
Very efficient and slick from order to delivery. Good prices too. Its about as good as it gets these days.
Luke R. –
Donald C. –
Delivery drivers kept me informed of time scale with two phone calls. They were professional and courteous.
Donald C. –
Matthew H. –
Very easy to order online. Great membership deals. Delivery service is excellent. They text early morning to give a 4hr slot. They then phone two hrs or more before that slot to ensure you’ve got the message and then deliver exactly when they say they will. Drivers are very friendly & helpful. Would highly recommend LifestyleHomeAppliances.co.uk.
Matthew H. –
Paul Y. –
Extremely efficient from start to finish.
Including excellent delivery.
Breath of fresh air 🙂
Paul Y. –
Barry R. –
ordered it on sunday got it on monday very happy so far.
Barry R. –
Gareth K. –
The lovely delivery men kept me informed at every step. When they were 2 hrs away and another call just to say that they were 5 mins away. Both men were extremely polite.
Gareth K. –
Debbie E. –
The item was as described at the most attractive price I could find and the delivery time was accurate to minutes – an excellent service.
Debbie E. –
Leila C. –
Website and ordering was easy to use and understand.
Delivery was made by 2 friendly and professional guys.
Leila C. –
Katherine C. –
Easy to change my order after I picked the wrong colour online. Hassle free delivery, courtesy call to say on way, and narrowed delivery window from all day to just before 11am, follow up call when ten minutes away. narrow windows. Courtesy call after delivery, (was a little salesy but caller was polite and not pushy.) Old item taken away, no fuss.
Katherine C. –