Technical specifications for OURA Ring 4 – Black, Size 8
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 8
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














































































































































































































































































































































































































David G. –
Lovely delivery drivers as always . Polite , communicate well . Gave my son a teddy bear thank you ! Lovely gesture .
David G. –
Ceri J. –
Great service, good value. Spot on service
Ceri J. –
Nigel D. –
Easy to order online.
Choose prompt delivery day.
Clear updates available when tracking order on delivery day with a phone call 30minutes before delivery so can pop home easily. Delivery team were polite & efficient.
Nigel D. –
Marta K. –
Very informative on line
The guys delivering and connecting the machine did a great job and very friendly
Well done
Marta K. –
Andrew B. –
Following a complaint regarding a purchase from Lifestyle Home Appliances i was contacted by ,a customer representative,he rectified the problem immediatelyafter doing so i would now highly recommend Lifestyle Home Appliances as a company in particular their delivery people and customer service for reinstatingmy confidence in them totally
Andrew B. –
Chris G. –
Tracking from order to delivery was easy. Great communication. Delivery team were polite and professional.
Chris G. –
Tariq O. –
Get there on time .work hard very helpful. Work as a team 5 stars
Tariq O. –
Dawn S. –
Informative with all aspects of purchase
Dawn S. –
Dennis W. –
Delivery drivers were friendly and super quick, helped me a lot!!
Dennis W. –
Josef M. –
Fair pricing timely delivery
Josef M. –
Robert H. –
Excellent delivery drivers
Robert H. –