How long should my ring work between charges?

Oura Ring 4 typically lasts 5-8 days on a full charge, depending on usage. Contact Oura Member Care if you have questions or concerns with battery life, and they will ensure your problem is resolved

How do I choose the right Oura Ring size?

Using the Oura Ring 4 Sizing Kit, choose a finger for your ring. We recommend the index, middle or ring finger. Wear the sizer ring for 24 hours to ensure the fit is secure and comfortable over the course of your day.

Oura Ring 4, Oura Ring 4 Charger, and USB-C Cable.

How do I see my Oura Ring metrics?

After activating your Oura Ring, you can choose a monthly or annual membership to unlock full access to Oura’s features, daily health and wellness metrics, and personalized guidance.

Can I use more than one ring?

Oura Members can now connect more than one Oura Ring 4 to their Oura App and quickly switch between them. Note, this feature only supports wearing and syncing data from one active Oura Ring at a time.

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Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life

Product ID: 734025832

Details

Battery cell composition
Lithium
Connectivity technology
Bluetooth
Operating system
i_os android
Special features
Heart Rate
Wireless communication standard
Bluetooth

⌚8 days battery life

💧IP67 water resistant

🔬30+ biometric sensors

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5480 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.

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Description

💍 Own your health, stealthily and stylishly.

UNPLUG GO - Up to 8 days of battery life means less charging, more living.
DATA DRIVEN WELLNESS - Track 30+ biometrics including sleep, heart rate, stress, and women’s health with Smart Sensing tech.
SEAMLESS SMART INTEGRATION - Bluetooth connectivity syncs effortlessly with iOS and Android for real-time insights.
PRECISION FIT ZERO GUESSWORK - Size yourself perfectly with the Oura Ring 4 Sizing Kit before you buy.
TITANIUM TOUGH FEATHER LIGHT - All-titanium design offers durability and comfort for 24/7 wear, even for sensitive skin.

The Oura Ring 4 is a minimalist, all-titanium smart ring designed for continuous 24/7 health tracking. It monitors over 30 biometric signals including sleep, heart rate, and stress, powered by adaptive Smart Sensing technology. With up to 8 days of battery life and IP67 water resistance, it blends durability with comfort. The sizing kit ensures a perfect fit, while Bluetooth compatibility keeps your data synced with iOS and Android devices. Ideal for professionals seeking discreet, data-driven wellness.

Specifications

ASIN	B0D9WW4XVP
Additional Features	Heart Rate Monitor, Activity Tracker
Age Range Description	Adult
Band Color	Stealth
Band Material Type	Titanium
Battery Average Life	8 days
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	#108 in Electronics ( See Top 100 in Electronics ) #1 in Wearable Tech Rings
Brand	OURA
Built-In Media	Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable
Case Material Type	Titanium
Clasp Type	Tang Buckle
Closure Type	Tang Buckle
Color	Stealth
Communication Feature	Bluetooth
Compatible Devices	Smartphone
Compatible Phone Models	Compatible with iOS and Android devices
Connectivity Technology	Bluetooth
Controller Type	Owner
Country of Origin	Estonia
Customer Reviews	4.1 4.1 out of 5 stars (7,377)
Display Type	No Display
GPS Geotagging Functionality	No GPS
Global Trade Identification Number	06430060153578
Human Interface Input	Unknown
Item Dimensions	27 x 27 x 8 millimeters
Item Dimensions D x W x H	27D x 27W x 8H millimeters
Item Weight	0.18 Kilograms
Manufacturer	Oura
Metrics Measured	multi-sensor
Model Name	JZ90
Model Number	JZ90-54218-13
Operating System	i_os, android
Shape	Round
Sport Type	Multi-Sports
Style Name	Minimalist
Supported Application	Various health and fitness apps, iOS, and Android
Supported Satellite Navigation System	GPS
Target Audience	Unisex Adults
Unit Count	1.0 Count
Warranty Description	2 year manufacturer warranty
Water Resistance Depth	1 Meters
Water Resistance Level	Water Resistant
Waterproof Rating	IP67
Wearable Computer Type	Smart Ring
Wireless Compability	Bluetooth

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

5480 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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