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 - Black - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible

Product ID: 661324824

Details

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

⌚8 days battery life

💧100m water resistant

📊50+ health metrics tracked

2495.38 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

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Description

💍 Own your health, silently and stylishly.

UNINTERRUPTED POWER - Up to 8 days of battery life means you stay focused on living, not charging.
PERFECT FIT GUARANTEE - Exclusive sizing kit ensures your Oura Ring fits like a second skin — no surprises, just comfort.
EFFORTLESS ALL DAY WEAR - Sleek, lightweight titanium design with water resistance up to 100 meters keeps up with your active lifestyle.
PRECISION HEALTH TRACKING - Smart Sensing adapts to your unique biometrics for 50+ metrics including sleep, stress, and women’s health.
SEAMLESS MULTI RING STYLE - Switch between multiple Oura Ring finishes effortlessly via the app to match your mood or outfit.

The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, designed to monitor over 50 health metrics including sleep, activity, heart health, and women’s health. Featuring Smart Sensing technology, it adapts to your body for precise insights. With up to 8 days of battery life, 100m water resistance, and a unique sizing system, it offers a comfortable, durable, and personalized wearable experience compatible with iOS and Android devices.

Specifications

ASIN	B0D9WV1TPJ
Additional Features	Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Age Range Description	Adult
Band Material Type	Metal
Battery Average Life	5 days
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	#195 in Electronics ( See Top 100 in Electronics ) #3 in Smart Rings #10 in Activity & Fitness Trackers
Brand	OURA
Built-In Media	Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
Closure Type	Ring
Color	Black
Communication Feature	Bluetooth
Compatible Devices	Smartphone
Compatible Phone Models	Compatible with iOS and Android devices
Connectivity Technology	Bluetooth
Controller Type	Gesture Recognition / Biometric Sensors
Customer Reviews	4.0 4.0 out of 5 stars (8,662)
Display Type	No Display
GPS Geotagging Functionality	GPS Via Smartphone
Global Trade Identification Number	06430060153189
Human Interface Input	Buttons
Item Dimensions	1.06 x 1.06 x 0.28 inches
Item Weight	0.11 kg
Manufacturer	Oura
Metrics Measured	Body Temperature, Menstrual Cycle, Sleep Duration, Stress
Model Name	Anillo 4
Model Number	JZ90-54144-10
Operating System	i_os, android
Shape	Round
Sport Type	Multi-Sports
Style Name	Metallic
Supported Application	Fitness Tracker, Sleep Monitor, Heart Rate Monitor, Multisport Tracker, Health, Wellness
Supported Satellite Navigation System	GPS
Target Audience	Unisex Adults
Unit Count	1 Count
Warranty Description	1 Year Manufacturer
Warranty Type	Limited
Water Resistance Depth	100 meters
Water Resistance Level	Water Resistant
Wearable Computer Type	Smart Ring
Wireless Compability	Bluetooth
Wireless Provider	Unlocked

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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