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.

Oura Ring 4 Smart Ring Silver Size 15

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

€ 667.58

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Description

💍 Own your health, effortlessly and in style.

UNPLUG GO - Up to 8 days of battery life means no constant charging—focus on living, not powering up.
CUSTOM FIT CONFIDENCE - Unique sizing system ensures your perfect fit—because comfort is key to consistent tracking.
SEAMLESS STYLE SWITCH - Multi-ring support lets you match your ring to your mood or outfit via the Oura App.
EFFORTLESS ALL DAY WEAR - Sleek, lightweight titanium design with water resistance up to 100m keeps up with your lifestyle.
PRECISION HEALTH INSIGHTS - Track 50+ vital metrics including sleep, heart, stress & women’s health with adaptive Smart Sensing.

The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, designed to deliver precise health insights by tracking over 50 biometric metrics including sleep, activity, stress, and women’s health. Featuring adaptive Smart Sensing technology, it offers continuous, personalized data with up to 8 days of battery life and water resistance rated at IP54. Its unique sizing system ensures a perfect fit, while multi-ring support allows easy style changes through the Oura App. Ideal for health-conscious professionals seeking discreet, reliable wellness tracking.

Specifications

ASIN	B0D9WV7R98
Additional Features	Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Age Range Description	Adult
Band Color	Black
Band Material Type	Stainless Steel
Battery Average Life	5 days
Battery Capacity	8 days
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	#334 in Electronics ( See Top 100 in Electronics ) #3 in Smart Rings
Brand	OURA
Built-In Media	Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
Case Material Type	Stainless Steel
Closure Type	Slip On
Color	Silver
Communication Feature	Bluetooth
Compatible Devices	Smartphone
Compatible Phone Models	Android Devices, iOS Devices
Connectivity Technology	Bluetooth
Controller Type	Ring
Customer Reviews	4.0 4.0 out of 5 stars (9,193)
Display Type	No Display
GPS Geotagging Functionality	GPS Via Smartphone
Human Interface Input	Unknown
Item Dimensions	0.98 x 0.98 x 0.31 inches
Item Dimensions D x W x H	0.98"D x 0.98"W x 0.31"H
Manufacturer	Oura
Metrics Measured	Body Temperature, Menstrual Cycle, Sleep Duration, Stress
Model Name	JZ90-54217-15
Model Number	JZ90-54217-15
Operating System	Proprietary/Custom
Shape	Round
Sim Card Size	eSIM
Style Name	Metallic
Supported Application	Fitness Tracker
Supported Satellite Navigation System	GPS
Target Audience	Unisex Adults
Warranty Description	1 Year Manufacturer
Warranty Type	Standard
Water Resistance Depth	100 meters
Water Resistance Level	Water Resistant
Waterproof Rating	IP54
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

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 667.58

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

View all Trustpilot reviews

OURA Ring 4 Smart Ring - Silver - Size 15

Details

Details

Description

Specifications

Common Questions