Oura
Ring true to you.
Naturally colorful. Powerfully personal.
Size before you buy Oura Ring 4.
Oura Ring 4 comes in sizes 4-15 and each size is specific to Oura Ring 4 — so it's important to size yourself first. There are two ways to find the perfect fit.
Option 1: Buy an Oura Ring 4 Sizing Kit and receive a $10 Best Buy gift card to use towards your Oura Ring 4.
Option 2: Size yourself in store at your nearest Best Buy.
Shop Oura Ring 4 Ceramic.
Oura Ring 4 Ceramic is a modern expression of our revolutionary smart ring technology that blends refined elegance with everyday comfort. The high-performance ceramic exterior is designed to keep up with you and all that you do. Choose from four stunning new colors to express your style, then understand yourself on a deeper level with daily insight into health.
Shop Oura Ring 4.
The next evolution of the revolutionary smart ring is here. Oura Ring 4 is powered by a new sensing technology, Smart Sensing, which adapts to your finger for the most accurate, personal data set. The updated, all-titanium design makes it more comfortable than ever, even for sensitive skin. All with a battery that lasts up to 8 days, so you can forget it's on.
Oura Membership
More power to you with Oura Membership.
Your Oura Ring and the Oura Membership work hand-in-hand to help you feel your best. As a member, you'll experience continuous health monitoring and deeply personal guidance that improves over time as Oura gets to know your body.
Get your first month free, and $7.99 plus tax/month afterwards.*
Sleep, readiness, and activity scores are just the beginning
Heart health.
From monitoring your daily heart rate and HRV to discovering your Cardiovascular Age and Cardio Capacity, Oura helps you take care of one of the key indicators of your overall health — your heart.
Illness detection.
Oura helps you identify early changes in your health by analyzing changes in your temperature trends, heart rate variability, and other key body signals.
Stress.
Oura's Stress feature detects moments of stress to help you identify your unique stress triggers and recovery tactics.
Women's health.
Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your health.
Oura Ring 4 Ceramic.
Easy to wear, everywhere.
 | Fully titanium 4 to 6 grams / w: 7.9mm / thickness: 3.51 mm. |
 | Smart Sensing Research-grade sensors adapt to your finger. |
 | Long battery life 5 to 8 days battery life. |
 | Water resistant Up to 100 meters (330 ft.) |
Oura Ring gives the gift of health.
Help a friend or loved one track their wellness by giving them an Oura Ring Sizing Kit and a Best Buy gift card they can use toward an Oura Ring.*
*Gift cards are shipped separately.
What is Oura Ring?
Oura Ring is a smart ring designed to help track sleep, activity, recovery, stress, heart health, and overall wellness. Using advanced sensors, Oura provides personalized insights through the Oura app to help users better understand their health and daily habits.
What does Oura Ring track?
Oura Ring tracks a wide range of health metrics including:
- Sleep quality and sleep stages
- Readiness and recovery
- Activity and movement
- Heart rate and heart rate variability (HRV)
- Stress levels
- Body temperature trends
- Women’s health insights
Oura Ring 4 can provide insights across more than 30 biometrics depending on the model and features available.
Is Oura Ring good for sleep tracking?
Oura Ring is widely known for its advanced sleep tracking features. It monitors sleep stages, sleep duration, restfulness, and recovery metrics to help users improve their sleep habits and overall wellness.
Does Oura Ring require a subscription?
An Oura Membership unlocks advanced insights, trends, and personalized guidance within the Oura app. New members receive a free trial period, after which a monthly membership fee applies.
How long does the Oura Ring battery last?
Oura Ring offers up to 5–8 days of battery life depending on usage, features enabled, and ring model.
Is Oura Ring waterproof?
Oura Ring is water resistant up to 100 metres (330 ft.), making it suitable for everyday wear, including workouts and swimming.
How do I choose the right Oura Ring size?
Oura Ring sizes differ from traditional ring sizing. Best Buy Canada recommends using an Oura Ring sizing kit or visiting a Best Buy store to find the correct fit before purchasing.
Can I buy an Oura Ring sizing kit?
Yes. Oura Ring sizing kits are available online and in select Best Buy stores to help determine the best ring size before purchasing an Oura Ring.
Can I wear Oura Ring all day?
Yes. Oura Ring is designed for 24/7 wear with a lightweight titanium design intended for both daytime activity tracking and overnight sleep monitoring.
What is the difference between Oura Ring and a smartwatch?
Unlike traditional smartwatches, Oura Ring offers health and wellness tracking in a lightweight, screen-free design. Many users prefer smart rings for comfort, battery life, sleep tracking, and discreet everyday wear.
Can Oura Ring help with stress and recovery tracking?
Yes. Oura Ring includes stress and recovery tracking features designed to help users better understand how their body responds to sleep, activity, and daily stressors.
Does Oura Ring support women’s health tracking?
Yes. Oura Ring includes features designed to support women’s health insights, including cycle tracking and body temperature trend monitoring.
Is Oura Ring available at Best Buy Canada?
Yes. Best Buy Canada carries Oura Ring smart rings, sizing kits, and accessories online and in select stores. Availability may vary by size, colour, and model.