Product Description
- Ensures accurate sizing for a secure fit.
- Optimises data accuracy for better health tracking.
- Suitable for Oura Ring Gen 3 Heritage and Horizon.
The Oura Ring Gen3 Sizing Kit ensures a comfortable and accurate fit for your Oura Ring Gen3. Designed specifically for the... Read more
- Ensures accurate sizing for a secure fit.
- Optimises data accuracy for better health tracking.
- Suitable for Oura Ring Gen 3 Heritage and Horizon.
The Oura Ring Gen3 Sizing Kit ensures a comfortable and accurate fit for your Oura Ring Gen3. Designed specifically for the Gen3 models, it includes sizes 6-13 (no half sizes) and is compatible with both Heritage and Horizon styles. To use, wear the sizer for at least 24 hours to find your best fit. The Oura Ring should sit securely at the base of your finger, with no rotation during daily activities.
This sizing kit guarantees the most accurate health data, comfort, and a better overall experience, ensuring your Oura Ring fits perfectly.
Why It's Healf
The ring also continuously fine-tunes your health data, delivering increasingly personalised feedback the longer it’s worn. Additionally, each Oura Ring is made from aerospace-grade titanium, one of the strongest materials on earth. Years of testing guarantee they're comfortable to wear and will last long– making them a reliable partner that powers your lifelong health journey.
Born in the happiest country in the world, Oura is the wellness brand behind the revolutionary Oura Ring and Oura App. Combining Finnish craftsmanship with cutting-edge technology, its mission is simple: to make health a daily practice. That’s why they created a tool that fits seamlessly into daily life, offering clear insights to support wellbeing. Empowering individuals to take control of their health, Oura guides everyone on their journey, helping them make informed decisions and lead better, healthier lives.
Here at Healf we do the work for you, every product goes through a 3 step curation process of Discovery, Expert Validation, and Community Testing. So you know you are only getting the best.
Delivery & Returns
SHIPPING INFORMATION:
At Healf we prioritise safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.
Option
UK Standard Delivery
Next Working Day Delivery
International Deliveries
Est. Delivery
2-3 Working Days
Next Working Day*
7 Working Days**
Orders <£50
£3.95
£5.95
£22.95 (Europe)
Orders >£50
FREE
£5.95
£49 (International)
*(if placed before 12.00)
**(up to 4 weeks)
UK Standard Delivery: Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.95.
Next Working Day Delivery: For when you need our products urgently, we offer a next working day shipping for £5.95. For orders placed before 12.00 we will ship it the same day to ensure you receive your order the next working day.
RETURNS POLICY:
If for any reason you are not satisfied with your order, we provide free 365 day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com and we’ll send you a return slip and help to arrange a collection. The item you return must be sent in the same condition as received, and inside the original packaging. Once received we will notify you via email.
For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.
Suggested Use
Ring Sizers as Guidelines
The ring sizers provided are intended as guidelines for selecting the correct size. They do not reflect the exact feel and quality of the Oura Ring that will be received once an order is updated.
Open the Sizing Kit
Inside the sizing kit, plastic ring sizers are included (sizes 4–15 for Oura Ring 4, sizes 6–13 for Gen3). Oura Ring sizes differ slightly from standard US ring sizes, and half sizes are not offered.
The Oura Ring and ring sizers have the same width and circumference, though the Oura Ring is slightly heavier due to differences in materials.
Choose the Finger
The Oura Ring can be worn on any finger and on either hand. For the best performance and accuracy, it is recommended to wear the Oura Ring on the index finger.
If the index finger is not preferred, the middle or ring fingers are the next best options. It’s important to avoid fingers with large knuckles, as the base of the finger may be narrower than the knuckle.
Trying the ring on different fingers can help determine the ideal fit. The ring can be moved between fingers and hands if necessary due to changes in finger size.
Confirm the Ring Orientation
For the Oura Ring 4, wear the ring sizer with the size number visible on the top of the hand.
For the Oura Ring Gen3, ensure the sensor bumps inside the ring sizer are placed on the palm side of the finger (the pad).
Ensure a Comfortable Fit
The Oura Ring should fit snugly around the base of the finger, ensuring it is secure without feeling too tight during regular wear. The right size will be comfortable for extended periods and will not easily slide off, but it should come off with a bit of soap and water.
Test the Snugness
Test the fit by making a fist while wearing the ring sizer. If there is a gap between the top of the finger and the inside of the ring, a smaller size may be needed.
Wear for 24 Hours
Finger size can fluctuate based on environmental factors, so it is advised to wear the ring sizer for at least 24 hours to ensure the best fit. The ring should not rotate as daily tasks are performed.
Confirm the Ring Size
Once the ideal size is chosen:
If the sizing kit was purchased from the Oura online store, sign in to My Account and confirm the ring size. An email will be sent once the order has been dispatched.
If the sizing kit was purchased from an authorised retailer, return to the retailer to purchase the correct ring size.
Oura Ring Sizing Kit
Find the perfect fit for your Oura Ring Gen3 with the sizing kit for a comfortable and accurate health tracking experience.
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Product Description
- Ensures accurate sizing for a secure fit.
- Optimises data accuracy for better health tracking.
- Suitable for Oura Ring Gen 3 Heritage and Horizon.
The Oura Ring Gen3 Sizing Kit ensures a comfortable and accurate fit for your Oura Ring Gen3. Designed specifically for the... Read more
- Ensures accurate sizing for a secure fit.
- Optimises data accuracy for better health tracking.
- Suitable for Oura Ring Gen 3 Heritage and Horizon.
The Oura Ring Gen3 Sizing Kit ensures a comfortable and accurate fit for your Oura Ring Gen3. Designed specifically for the Gen3 models, it includes sizes 6-13 (no half sizes) and is compatible with both Heritage and Horizon styles. To use, wear the sizer for at least 24 hours to find your best fit. The Oura Ring should sit securely at the base of your finger, with no rotation during daily activities.
This sizing kit guarantees the most accurate health data, comfort, and a better overall experience, ensuring your Oura Ring fits perfectly.
Why It's Healf
The ring also continuously fine-tunes your health data, delivering increasingly personalised feedback the longer it’s worn. Additionally, each Oura Ring is made from aerospace-grade titanium, one of the strongest materials on earth. Years of testing guarantee they're comfortable to wear and will last long– making them a reliable partner that powers your lifelong health journey.
Born in the happiest country in the world, Oura is the wellness brand behind the revolutionary Oura Ring and Oura App. Combining Finnish craftsmanship with cutting-edge technology, its mission is simple: to make health a daily practice. That’s why they created a tool that fits seamlessly into daily life, offering clear insights to support wellbeing. Empowering individuals to take control of their health, Oura guides everyone on their journey, helping them make informed decisions and lead better, healthier lives.
Here at Healf we do the work for you, every product goes through a 3 step curation process of Discovery, Expert Validation, and Community Testing. So you know you are only getting the best.
Delivery & Returns
SHIPPING INFORMATION:
At Healf we prioritise safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.
Option
UK Standard Delivery
Next Working Day Delivery
International Deliveries
Est. Delivery
2-3 Working Days
Next Working Day*
7 Working Days**
Orders <£50
£3.95
£5.95
£22.95 (Europe)
Orders >£50
FREE
£5.95
£49 (International)
*(if placed before 12.00)
**(up to 4 weeks)
UK Standard Delivery: Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.95.
Next Working Day Delivery: For when you need our products urgently, we offer a next working day shipping for £5.95. For orders placed before 12.00 we will ship it the same day to ensure you receive your order the next working day.
RETURNS POLICY:
If for any reason you are not satisfied with your order, we provide free 365 day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com and we’ll send you a return slip and help to arrange a collection. The item you return must be sent in the same condition as received, and inside the original packaging. Once received we will notify you via email.
For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.
Suggested Use
Ring Sizers as Guidelines
The ring sizers provided are intended as guidelines for selecting the correct size. They do not reflect the exact feel and quality of the Oura Ring that will be received once an order is updated.
Open the Sizing Kit
Inside the sizing kit, plastic ring sizers are included (sizes 4–15 for Oura Ring 4, sizes 6–13 for Gen3). Oura Ring sizes differ slightly from standard US ring sizes, and half sizes are not offered.
The Oura Ring and ring sizers have the same width and circumference, though the Oura Ring is slightly heavier due to differences in materials.
Choose the Finger
The Oura Ring can be worn on any finger and on either hand. For the best performance and accuracy, it is recommended to wear the Oura Ring on the index finger.
If the index finger is not preferred, the middle or ring fingers are the next best options. It’s important to avoid fingers with large knuckles, as the base of the finger may be narrower than the knuckle.
Trying the ring on different fingers can help determine the ideal fit. The ring can be moved between fingers and hands if necessary due to changes in finger size.
Confirm the Ring Orientation
For the Oura Ring 4, wear the ring sizer with the size number visible on the top of the hand.
For the Oura Ring Gen3, ensure the sensor bumps inside the ring sizer are placed on the palm side of the finger (the pad).
Ensure a Comfortable Fit
The Oura Ring should fit snugly around the base of the finger, ensuring it is secure without feeling too tight during regular wear. The right size will be comfortable for extended periods and will not easily slide off, but it should come off with a bit of soap and water.
Test the Snugness
Test the fit by making a fist while wearing the ring sizer. If there is a gap between the top of the finger and the inside of the ring, a smaller size may be needed.
Wear for 24 Hours
Finger size can fluctuate based on environmental factors, so it is advised to wear the ring sizer for at least 24 hours to ensure the best fit. The ring should not rotate as daily tasks are performed.
Confirm the Ring Size
Once the ideal size is chosen:
If the sizing kit was purchased from the Oura online store, sign in to My Account and confirm the ring size. An email will be sent once the order has been dispatched.
If the sizing kit was purchased from an authorised retailer, return to the retailer to purchase the correct ring size.
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Frequently Asked Questions.
How are the products selected?
Our main focus here at Healf is to make sure you are getting access to the best global wellbeing brands that align with our core values, where we believe wellbeing is characterized by The Four Pillars - EAT, MOVE, MIND, SLEEP. We hand select products all over the world and put them through our strict three step curation process which entails discovery, expert validation, and our community testing. In order to protect our community we always quality check all ingredients of the products we select, and do not feature products with any ingredients we mention on our Healf Banned Ingredient List.
Do you have resources or articles on maintaining a healthy lifestyle?
Our team of in-house experts stay up to date with the latest research on wellbeing. They constantly evaluate health trends and make sure to filter real vs. faux and deeply understand that there truly is no ‘one size fits all’ approach to your wellbeing. You can check the Healf journal here and make sure to subscribe to our mailing list for more content.
Can I find more information about the ingredients used?
We love people who check ingredients. You’ll find detailed information about the ingredients in every product page and if you find something you’d like to flag with us or have more questions, drop us a message.
Three step
curation process
The Healf stamp of approval: Here at Healf every product goes through a rigorous Three Step Curation Process, so you know you are only getting the best.
Healf's discovery process leverages a global scouting network of health professionals and AI-powered trend analysis to unearth the finest health products worldwide, ensuring you have access to a constant stream to the most innovative and highest quality products.
Every product undergoes examination by a panel of industry specialists, including dieticians, personal trainers, psychologists, and sleep experts, reviewing each item to ensure it meets our rigorous standards for health.
Our community stands at the backbone of our business. We have a group of customers that rigorously test and review each product for its real impact on well-being; if it doesn't make a noticeable difference for most, it won't make our website.
