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.

Ring 4 Silver Size 9 Size Before You Buy

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NT$17864

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In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

8 DAY POWERHOUSE - Forget daily charging with a robust 8-day battery and quick 80-minute wireless recharge—stay powered through your busiest weeks.
BIOMETRIC MASTERY - Track heart rate, sleep, activity, stress, and even your cycle with over 50 precise biometrics for a truly personalized health roadmap.
TITANIUM TOUGHNESS - Crafted from aerospace-grade titanium for unmatched strength and featherlight comfort—wear it all day, every day.
SEAMLESS SMART SYNC - Effortlessly connect via Bluetooth to your smartphone for deep-dive analytics and actionable insights through the sleek Oura app.
WATERPROOF WORKOUT READY - IP68 water resistance up to 328 feet means your ring keeps pace from marathon runs to swimming laps without missing a beat.

The Oura Ring 4 in silver is a sleek, titanium smart ring designed for professionals who demand precision health tracking and style. With an 8-day battery, advanced biometric sensors monitoring heart rate, sleep, activity, and stress, plus seamless Bluetooth app integration, it empowers you to optimize your daily performance and recovery. Water resistant up to 328 feet and available in multiple sizes, it’s the ultimate wearable for holistic health insights without the bulk of a smartwatch.

Specifications

ASIN	B0D9WWB3WX
Age Range Description	Adult
Band Colour	Silver
Band Material Type	Titanium
Battery Average Life	8 days
Battery Capacity	192 hours
Battery Cell Type	Lithium Polymer
Battery Charge Time	80 minutes
Best Sellers Rank	294 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1 in Wearable Tech Rings
Box Contents	Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable
Brand Name	OURA
Case Material Type	Titanium
Closure Type	Slip On
Colour	Silver
Communication Feature	Bluetooth
Compatible Devices	PC, Smartphone, Tablet
Compatible Phone Models	All current smartphone models with iOS and Android operating systems
Connectivity Technology	Bluetooth
Controller Type	ring
Country of Origin	Estonia
Customer Reviews	4.2 4.2 out of 5 stars (8,868)
Display Type	No Display
EU Spare Part Availability Duration	8 Days
GPS Geotagging Functionality	No GPS
Human Interface Input	Buttons
Item Dimensions	26 x 26 x 7 millimetres
Item Dimensions D x W x H	26D x 26W x 7H millimetres
Item Weight	0.18 Kilograms
Manufacturer	Oura
Metrics Measured	Heart Rate, Sleep Duration, Activity, Stress
Model Name	Oura Ring 4
Model Number	JZ90-54217-09
Operating System	Proprietary OS
Product Features	Heart Rate Monitor, Activity Tracker
Product Warranty	3 year manufacturer warranty
RAM Memory Installed	512 KB
Shape	Round
Sport Type	Fitness, Swimming
Style Name	Modern
Supported Application	Apple Health
Target Audience	Unisex Adult
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.

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NT$17864

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered 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 Taiwan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Ring 4 - Silver - Size 9 - Size Before You Buy

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Description

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