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

Product ID: 664938433

Details

Battery capacity
800
Connectivity technology
Bluetooth
Operating system
Android
Special features
Activity
Wireless communication standard
Bluetooth

⌚8 days battery life

💧Water resistant up to 328 ft

🔬Tracks 30+ biometrics

S$452

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💍 Elevate your wellness game—wear the future on your finger.

SIZE FIRST PERFECT FIT - Use the Oura Ring 4 Sizing Kit to ensure your ring fits flawlessly before purchase—no guesswork, just precision.
TITANIUM TOUGH FEATHER LIGHT - Crafted from durable yet lightweight titanium, designed for 24/7 comfort and resilience—even for sensitive skin.
UNPLUG GO WITH 8 DAY BATTERY - Forget daily charging—enjoy up to 8 days of uninterrupted tracking with a quick 80-minute recharge.
ALL DAY ALL NIGHT SMART SENSING - Monitor sleep, heart rate, activity, stress, and women’s health with adaptive, continuous tracking that evolves with you.
SEAMLESS CONNECTIVITY MEMBERSHIP - Sync effortlessly via Bluetooth with all smartphones and unlock exclusive insights through the Oura membership.

The Oura Ring 4 is a sleek, all-titanium smart ring designed for continuous 24/7 biometric tracking, including sleep, heart rate, and stress. It offers up to 8 days of battery life, water resistance up to 328 feet, and connects seamlessly via Bluetooth to smartphones. With a precision sizing kit and an optional membership for advanced insights, it’s the ultimate wearable for health-conscious professionals.

Specifications

ASIN	B0D9WVTHPV
Additional Features	Activity Tracker
Age Range Description	Adult
Band Color	Stealth
Band Material Type	Titanium
Battery Average Life	8 days
Battery Capacity	800 milliamp_hours
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	#507 in Electronics ( See Top 100 in Electronics ) #3 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	Band
Color	Stealth
Communication Feature	Bluetooth
Compatible Devices	Smartphone, Tablet
Compatible Phone Models	All current iPhone models, all current Android models
Connectivity Technology	Bluetooth
Country of Origin	Estonia
Customer Reviews	4.0 4.0 out of 5 stars (8,995)
Display Type	No Display
GPS Geotagging Functionality	No GPS
Human Interface Input	Unknown
Item Dimensions	28 x 28 x 8 millimeters
Item Dimensions D x W x H	28D x 28W x 8H millimeters
Item Weight	0.19 Kilograms
Manufacturer	Oura
Metrics Measured	Heart Rate Monitor
Model Name	Oura Ring 4
Model Number	JZ90-54218-07
Operating System	Android
Shape	Ring
Sport Type	Multi-Sports
Style Name	Modern
Supported Application	Fitness Tracker
Supported Satellite Navigation System	GPS
Target Audience	Adults
Warranty Description	2 year manufacturer warranty
Warranty Type	Lifetime
Water Resistance Depth	328 Feet
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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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

1 month ago

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S$452

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Rajesh P.

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

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