Technical specifications for OURA Ring 4 – Black, Size 7
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 7
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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Glenys P. –
Excellent comms and delivery. Everything on time and frequent updates. Thank you.
Glenys P. –
Olive E. –
it was easy to look and order
Olive E. –
Gordon W. –
great delivery service, professional
Gordon W. –
Craig H. –
All good very professional
Craig H. –
Tony S. –
Delivered on time and nice product
Tony S. –
Mag D. –
Just a first-class service from website ordering to delivery.
Mag D. –
Shaun E. –
On time, friendly, good at what they do. Very quick.
Shaun E. –
Louise A. –
Prompt delivery – good delivery staff
Louise A. –
Patricia B. –
Excellent delivery.
Patricia B. –
Rachel J. –
The two men who delivered our appliance were polite and friendly!
Rachel J. –
Carole J. –
Great delivery time, excellent and very helpful delivery team, and very pleasant
Carole J. –
Jacqueline H. –
The two guys were superb , very quick I paid extra as my spine is bad but with my thingy they took old away, free next day delivery ! And I got a few quid off being a member ! Was superb experience ! Well done guys !
Jacqueline H. –
Rick J. –
Very fast delivery, thank you!
Rick J. –
Matt A. –
Straight forward. Found it, bought it delivered it all in the space of 2 days. Amazing service. Arrived on time. Great communication.
Matt A. –