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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Oura 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

Oura 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: 734025778

Details

Battery capacity
800
Connectivity technology
Bluetooth
Operating system
Android iOS
Special features
Heart Rate
Wireless communication standard
Bluetooth

⌚8 days battery life

💧Water resistant up to 100m

🔬Tracks 30+ biometrics

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€ 695.31

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In stock

Sold byAmazon BelgiumDelivered 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 Belgium.

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Description

💍 Elevate your health game with the ring that knows you best.

UNPLUG GO FREEDOM - Up to 8 days of battery life means less charging, more living—stay connected without the tether.
JOIN THE WELLNESS ELITE - Get your first month of Oura Membership free and unlock personalized insights that keep you ahead.
PRECISION SIZING PERFECT FIT - Size yourself first with the exclusive Oura Ring 4 Sizing Kit—no guesswork, just confidence.
TITANIUM TOUGH FEATHER LIGHT - Durable yet ultra-comfortable design crafted for 24/7 wear, even in water up to 100 meters deep.
ALL DAY ALL NIGHT SMART SENSING - Seamlessly monitor sleep, heart rate, activity, stress, and women’s health with adaptive accuracy.

The Oura Ring 4 is a sleek, titanium smart ring designed for continuous 24/7 wear, offering advanced biometric tracking across 30+ health metrics including sleep, heart rate, and activity. With up to 8 days of battery life, water resistance up to 100 meters, and a precision sizing kit, it delivers accurate, adaptive insights through the Oura app, empowering professionals to optimize wellness effortlessly.

Specifications

ASIN	B0D9WVPP8M
Additional Features	Heart Rate Monitor, Activity Tracker, Sleep Monitor
Age Range Description	Adult
Band Color	Silver
Band Material Type	Stainless Steel
Battery Average Life	8 days
Battery Capacity	800
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	#119 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
Closure Type	Slip On
Color	Silver
Communication Feature	Bluetooth
Compatible Devices	Smartphone
Compatible Phone Models	Compatible with iOS and Android devices
Connectivity Technology	Bluetooth
Country of Origin	Estonia
Customer Reviews	4.1 4.1 out of 5 stars (7,391)
Display Type	No Display
GPS Geotagging Functionality	No GPS
Human Interface Input	Buttons
Item Dimensions	22 x 22 x 7 millimeters
Item Dimensions D x W x H	22D x 22W x 7H millimeters
Manufacturer	Oura
Metrics Measured	Optical Heart Rate Sensor, Temperature Sensor, Blood Oxygen Sensor, Accelerometer
Model Name	JZ90-54217-04
Model Number	JZ90-54217-04
Operating System	Android, iOS
Shape	Round
Style Name	Minimalist
Supported Application	Multiple
Supported Satellite Navigation System	GPS
Target Audience	Men
Unit Count	1.0 Count
Warranty Description	2 year manufacturer warranty
Water Resistance Depth	100 Meters
Water Resistance Level	Water Resistant
Waterproof Rating	IPX8
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

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

€ 695.31

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered 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 Belgium.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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