Technical specifications for OURA Ring 4 – Silver, Size 11
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 11
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
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







CANON EOS R100 Mirrorless Camera with RF-S 18-45 mm f/4.5-6.3 IS STM & 55-210 mm f/5-7.1 IS STM Lens
SONY ULT Tower 10 Bluetooth Party Speaker – Black
SHARP ES-NFB8141BD 8 kg 1400 Spin Washing Machine – Black
TEKNIK Elstree Lateral Filing Cabinet – Spiced Mahogany
LG EZDispense with TurboWash 360 V11 FWV1117WTSA WiFi-enabled 10.5 kg Washer Dryer – White
APPLE iPhone 15 Pro – 512 GB Blue Titanium
INDESIT MTWC 91495 W UK N 9 kg 1400 Spin Washing Machine – White
PANASONIC TX-65MZ1500B 65 Smart 4K Ultra HD HDR OLED TV with Amazon Alexa
ECHELON Stride 20 Sport Folding Smart Bluetooth Treadmill – Black
PANASONIC TX-40MS490B 40″ Smart Full HD HDR LED TV with Google Assistant
PROFORM 225 CSX Smart Bluetooth Exercise Bike – Black & Silver
TCL 85C645K 85″ Smart 4K Ultra HD HDR QLED TV with Google Assistant
PANASONIC Lumix DMC-LX15EB-K High Performance Compact Camera – Black
PHILIPS Ambilight 50PUS8108 12 50″ Smart 4K Ultra HD HDR LED TV with Amazon Alexa
SAMSUNG Galaxy Ring – Titanium Gold, Size 15 






































































































































































































































































































































































































Douglas R. –
Nice considerate team twice called to inform on rough eta and then actually eta left no mess and explained everything that needed to be done.
Douglas R. –
Rachel M. –
Works as described but the setup instructions were very unclear. Took far longer than it should have to get working.
Rachel M. –
Leslie H. –
Two pleasant young men delivered on time and as expected
Leslie H. –
Julie K. –
easy to order and easy to arrange delivery
Julie K. –
Ken E. –
Easy to use website and very quick delivery and a very polite young man delivered my order. A 10 out 10 all round
Ken E. –
Clairec T. –
Very fast reliable service
Clairec T. –
Michael A. –
Great service from ordering to item being delivered .
Michael A. –
Louise C. –
Good price, quick delivery, friendly delivery drivers 👍🏼
Louise C. –
Matthew E. –
Easy to order. Telephone lady was very patient and thorough.
The delivery men, 2 Romanians were extremely efficient, friendly and extremely helpful chaps.
Matthew E. –