Technical specifications for OURA Ring 4 – Stealth, Size 4
OVERVIEW
Type
Smart ring
App store
– Apple App Store
– Google Play Store
– Google Play Store
Size / fit
Size 4
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
Stealth
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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Roger M. –
A very easy ordering service with good prices, a great delivery service with first class tracking, and the delivery guys are a credit to the company efficient polite and friendly, highly recommended company.
Roger M. –
Daniel D. –
Great company, easy ordering good website and keep you fully informed all the way to delivery. friendly delivery people
Daniel D. –
Joanne N. –
No problem with LifestyleHomeAppliances.co.uk and the whole ordering experience. Unusually the problem was with the shipping. My parcel ended up on the day of delivery, at Newbury, which I understand is in the SE of England. The parcel was eventually delivered on the Tuesday, instead of the Monday.
Joanne N. –
Bezzer A. –
Quick efficient service
Bezzer A. –
Paul I. –
Very pleased with the product and the service we received.
Paul I. –
Emma W. –
Great service as always with Lifestyle Home Appliances!
Emma W. –
Sheri F. –
Great service from Lifestyle Home Appliances, super friendly drivers and delivery crew. Considerate and great customer service. Well done Team!
Sheri F. –
Prathamesh S. –
Quick delivery perfect condition great price good colour choice of the outer casing too match current kitchen and other accessories had to hold the delivery till after easter weekend and dpd were happy to do and deliver it on time on my new chosen day cheers
Prathamesh S. –
James P. –
Delivery smooth and on time, good communication
James P. –
Trevor R. –
Ease of ordering and competitive pricing
Trevor R. –
Janice B. –
Excellent processes all round
Janice B. –
Chris R. –
Great delivery on time as agreed! Fantastic product, great price.
Chris R. –
Claire K. –
Simple to use Efficient No Hassle .Well done Lifestyle Home Appliances and Thank you.
Appliance not yet Tested
Claire K. –