Technical specifications for OURA Ring 4 – Brushed Silver, Size 13
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 13
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
Brushed silver
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














































































































































































































































































































































































































Emma G. –
Superb service couldn’t fault anything very helpful
Emma G. –
Harris B. –
Came i did what needed doing. Quick and helpful
Harris B. –
Tracey N. –
Quick delivery and very helpful drivers.
Tracey N. –
Claire B. –
From the time I booked to delivery I was updated regularly and given a spot knowing I had more time to do things through the rest of my day! Very convenient. Delivery very happy and friendly all sorted in about 15 minutes. Will definitely use them again. 😊
Claire B. –
Sally W. –
Excellent service good timekeeping.
Sally W. –
John N. –
Great service, I was kept up to date all along. The drivers were great, very friendly and helpful and also paid attention to the instructions of where to go.
John N. –
Helen H. –
Delivery fast efficient
Helen H. –
Andrew S. –
Very prompt. Very nice friendly men. Very pleased about everything.
Andrew S. –
Lorraine V. –
Good excellent guys
Lorraine V. –
Jimmac K. –
On time. Polite and professional delivery guy/fitter.
Very pleased with the service
Jimmac K. –
Penny M. –
Really quick delivery, reasonably priced. Deliver men couldn’t have been more helpful – they went above and beyond and for that reason I’ll shop here again. Also good communication of delivery times.
Penny M. –