Technical specifications for OURA Ring 4 – Brushed Silver, 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
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







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OURA Ring 4 – Black, Size 10 





































































































































































































































































































































































































Shareefah B. –
Delivery on time kept up to date with phone call drivers did excellent job
Shareefah B. –
Ermira B. –
Very nice delivery staff.
Ermira B. –
Chris P. –
Delivery was fast and the item was a really good pice!
Chris P. –
Amanda K. –
on time but not sure about DPD delivering not very good in our area if i would of known it was dpd i would not have ordered no more orders untill they give a choice of couriers
Amanda K. –
Graham V. –
As previously stated the delivery was made in awful weather but the guys were pleasant and friendly and kept us updated on the delivery ETA
Graham V. –
Allison H. –
Brilliant service they were really helpful, would definitely use a o again x xx
Allison H. –
Gill C. –
Kept me informed , delivered within the time scale . Friendly delivery team
Gill C. –
Ade L. –
I was kept informed of when my purchase was being delivered.
The driver called with an approximate time of delivery.
Ade L. –
Tatchell L. –
Very polite and happy driver . Perfect delivery and very respectful
Tatchell L. –