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 - Stealth - Size 7 | Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible

Product ID: 661766755

Details

Battery Cell Composition
Lithium
Brand
OURA
Connectivity Technology
Bluetooth
GPS
GPS Via
Model Name
Oura Ring 4
Operating System
i_os android

⌚8 days battery life

💧IP68 waterproof rating

📊50+ health metrics tracked

¥109362

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

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Description

💍 Own your health, invisibly powerful.

EFFORTLESS ALL DAY WEAR - Sleek titanium stealth design with water resistance up to 100m keeps pace with your lifestyle.
SEAMLESS HEALTH ECOSYSTEM - Integrated Oura Membership unlocks AI-driven guidance for sleep, activity, stress, and women’s health.
UNMATCHED BATTERY FREEDOM - Up to 8 days of uninterrupted tracking means you stay focused, not charging.
PRECISION MEETS ADAPTABILITY - Smart Sensing tech delivers hyper-accurate, personalized health insights 24/7.
TAILORED FIT ZERO GUESSWORK - Unique sizing kit ensures your Oura Ring fits perfectly before you buy—comfort guaranteed.

The Oura Ring 4 Stealth is a cutting-edge smart ring crafted from titanium, designed for continuous health monitoring with over 50 biometric metrics including sleep, activity, stress, and women’s health. Featuring Smart Sensing technology, it adapts to your body for precise insights, offers up to 8 days of battery life, and is water resistant to 100 meters. Compatible with iOS and Android, it includes a unique sizing kit for a perfect fit and comes with an Oura Membership for personalized AI health coaching.

Specifications

ASIN	B0D9WVTHPV
Additional Features	Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Age Range Description	Adult
Band Color	Stealth
Band Material Type	Titanium
Battery Average Life	5 days
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	#212 in Electronics ( See Top 100 in Electronics ) #2 in Smart Rings #6 in Activity & Fitness Trackers
Brand	OURA
Built-In Media	Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
Case Material Type	Titanium
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	App-based
Customer Reviews	4.0 4.0 out of 5 stars (8,781)
Display Type	No Display
GPS Geotagging Functionality	GPS Via Smartphone
Human Interface Input	Unknown
Item Dimensions	1.1 x 1.1 x 0.31 inches
Item Weight	0.19 kg
Manufacturer	Oura
Metrics Measured	Body Temperature, Menstrual Cycle, Sleep Duration, Stress
Model Name	Oura Ring 4
Model Number	JZ90-54218-07
Operating System	i_os, android
Shape	Round
Sport Type	Multi-Sports
Style Name	Metallic
Supported Application	Fitness Tracker
Supported Satellite Navigation System	GPS
Target Audience	Unisex Adults
Warranty Description	1 Year Manufacturer
Warranty Type	Standard/Full warranty
Water Resistance Depth	100 meters
Water Resistance Level	Water Resistant
Waterproof Rating	IP68
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.

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Perfect platform for hard-to-find items. Delivery was prompt.

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Fantastic and great service. Shipping was faster than expected.

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¥109362

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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