Oura Ring Sizing & Sizing Kit FAQs

The article contains answers to frequently asked questions related to the Oura Ring sizing process and how to get started with our free sizing kit to determine your best ring size. We highly recommend taking advantage of our free sizing kit to ensure you decide on an ideal fit. This will allow you to receive the most accurate and consistent insights possible from your Oura Ring.

If you have a question about a pending order, please reach out to us here.

Ring Sizing FAQs

Answers to questions that relate to our ring sizing process and how to determine the right Oura Ring size can be found below.

1. How do I determine the right Oura Ring size?

For tips on how to find the right size for you, check out this article.

Note that a snug fit is highly important for accuracy, as well as daily comfort. If your ring is too loose, it may move while you sleep which can cause gaps in your overnight data.

2. What if I'm having issues finding the right size?

The smallest size Oura offers is US6. If this is too large for you, try wearing the ring on your thumb. The largest size Oura offers is US13. If this is too small for you, there's not much we can do, unfortunately.

3. Why does Oura recommend I wear the sizing kit rings for 24 hours?

Keep in mind that the size of your fingers will change over a 24-hour period. If you try on multiple sizes and can’t find one that seems ideal at that very moment, try wearing a few different sizes over 24 hours and see which one compliments your lifestyle best.

4. Can I wear my Oura Ring on different fingers?

It may be helpful to know that you can also switch between fingers and, or hands, without any impact on your data. With this in mind, we suggest you go with a snug, yet comfortable fit that allows for finger flexibility while engaging in all your daily tasks.

5. Does Oura offer half sizes?

Oura Rings are not available in half-sizes. We offer 8 sizes—US6-US13. Follow the advice above if you’re concerned about not being able to find the perfect fit.

6. Can you help with international size conversion?

If you're determining your size at a jewelry store outside of the United States, you can use this conversion chart to match your local ring sizes to the US standards.

Sizing Kit FAQs

Answers to questions that relate to ordering, receiving, and using our free sizing kit are all found below.

1. How do I order a sizing kit?

At this time, we don’t offer the option to buy sizing kits on their own.

However, you'll receive a complimentary sizing kit when you purchase an Oura Ring. Simply select the 'Use free specialized sizing kit (highly recommended)' option during the checkout process.

2. When will I receive my sizing kit?

Sizing kits typically arrive within 1 week of order placement. You will receive a confirmation email with tracking details once your sizing kit has shipped.

3. Can I change my shipping address?

Please submit a request with your order number and new address. Our team will update your order upon receiving your request.

Note that you’ll only be able to change your address if your sizing kit hasn’t shipped yet. If your sizing kit has already shipped, you’ll need to get in touch with DHL’s On-Demand Delivery Service to change the delivery address you originally entered. Please keep in mind that On-Demand service is only available for DHL Express shipments, which depends on stock availability and your location. 

4. How do I update my order with my ring size?

Visit ouraring.com/sizing and select 'Confirm Your Size' to update your order.

Our team will send you an email to log in to your account and update your Oura Ring size.

5. Do I need to return my sizing kit?

You do not need to return the sizing kit once you're finished with it. Instead, feel free to pass it along to a friend or family member who might be interested in Oura. Otherwise, please recycle your sizing kit.

6. What are the differences between the sizing kit rings and Oura Rings?

The sizing kit rings and Oura Rings are the same approximate width and weight. However, please note that, in comparison to the material used in the sizing kit rings, the Oura Ring itself weighs slightly more and has a titanium coating that makes up the outer shell.

It’s important to keep in mind that the sizing kit rings are meant to serve as guidelines for choosing the correct size only, and are not reflective of the quality and feel of the Oura Ring you’ll receive after confirming your size.

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