Health trackers | Operating system
	Operating system	Brand-specific
	Compatible with operating system	Android, iOS
	Required iPhone model	No impact
	Required Android version smartphone	Android 13.0 or higher
	Year introduced	2024
	Guaranteed support with updates	Unknown

Health trackers | Properties

Health trackers | Properties
	Type of health tracker	Smart ring
	Weight	0,18 g
	Shockproof
	Collection color	Gray
	Width	11,3 mm
	Depth	3,5 mm
	Height	11,3 mm
	Ring size	14

Health trackers | Battery properties

Health trackers | Battery properties
	Battery/battery capacity	0,0255 Ah
	Energy source solar power
	Battery life in time mode	192 hours
	Battery life in sports mode	5 days
	Quick charge functionality

Health trackers | Connectivity and smart functions

Health trackers | Connectivity and smart functions
	Bluetooth
	ANT+

Health trackers | GPS

Health trackers | GPS
	Built-in GPS receiver

Health trackers | Sensors

Health trackers | Sensors
	Altimeter
	Barometer
	Thermometer
	Gyroscope
	Depth gauge

Healthtrackers | Daily activities

Healthtrackers | Daily activities
	Calorie counter
	Pedometer
	Measures distance
	Measures stairs climbed
	Speedometer

Health trackers | Health properties

Health trackers | Health properties
	Heart rate measurement
	Heart rate measurement under water
	Type of heart rate measurement	Optical heart rate measurement
	Heart rate zones
	Measure fitness age
	VO2 max measurement
	Average heart rate during sleep
	Oximeter
	EDA sensor
	Pregnancy monitoring
	Menstrual cycle tracking
	Skin temperature sensor
	Blood pressure monitor
	Sleep score
	Measure recovery during sleep
	Meet HRV

Health trackers | Sport properties

Health trackers | Sport properties
	Manual training programs
	Recovery advice
	ATM score	10

Health trackers | Extra functions

Health trackers | Extra functions
	Fall detection

Health trackers | Properties for accessory links

Health trackers | Properties for accessory links
	Suitable for model	Oura Ring 4
	Included accessories	No accessories
	Generation	Adults
	Gender adults	Unisex
	Wireless charging
	Type of USB port	USB-C

Health trackers | Derived

Health trackers | Derived
	Quality of health readings	Very good
	Quality of sports readings	Good

anything for a smile

Reviews

Rating

5 stars

4 stars

3 stars

2 stars

1 star

Most helpful reviews

Review is 10 out of 10.

Ideal for accurate insight into your energy and rest.

Clearly
Helpful
Not yet

It is a good idea to purchase a sizing kit before ordering the Oura ring, so you can properly test the size first (wear it for at least 24 hours). I initially thought I needed a specific size, but apparently my fingers swell up a lot at night. Without the sizing kit, that size would have been a major mispurchase.

The ring is very pleasant to use. The app provides very clear insight into my day. Because I have energy issues due to Long Covid, this overview helps me enormously to determine when I need to rest. The ring tracks your sleep, restedness, heart rate, steps, calorie burn, activities, breathing, and much more! Additionally, it can also be used underwater, I believe up to 100 meters.

Review by:
Mostapha
Date:
22 May 2026
Translation:
Automatically translated from Nederlands

Fantastic!

I used to have an Apple Watch, but this OURA ring 4 is much more feature-rich and wears fantastically!

Review by:
Caroline
Date:
7 June 2026
Translation:
Automatically translated from Nederlands

Oura Ring 4 Size 14 Gray

Never available again

Similar Health trackers