Technical specifications for OURA Ring 4 – Black, Size 5
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 5
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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Carol W. –
Issues sorted quickly and efficiently, unlike the actual manufacturer of the product.
Carol W. –
Paul M. –
Whole thing was really easy and the delivery men were incredibly helpful and friendly. Thank you!
Paul M. –
Nharvey L. –
Good choice of brands, fair prices, delivery on time, pleasant delivery driver
Nharvey L. –
Eddie W. –
all good, delivered on time and no problems
Eddie W. –
Kk90 N. –
Always great help
Kk90 N. –
Graham S. –
Very chatty and friendly and on time
Graham S. –
Paul H. –
On time, quick and efficient. In and out in 10 minutes all done. Thank you
Paul H. –
Jacqui N. –
Competitive pricing. Products delivered within 3 days of order. Delivery team were very good.
Jacqui N. –
Zoe M. –
Helpful customer service employee with a problem with the manufacturer and polite delivery men with replacement
Zoe M. –
Maureen H. –
Delivery service were quick, brilliant and wonderful 🙂
Maureen H. –
Judith F. –
quick delivery and good communication from delivery team. Polite and proffesional
Judith F. –
Uncle J. –
Great price and delivery
Uncle J. –
Colin F. –
Delivery as advised. The technicians that came to set up everything were very efficient, professional and kind. Next time Lifestyle Home Appliances for sure….
Colin F. –