Learn About Oura Ring
Oura Ring 4 is here
Sleeker. Smarter. Made for you.
Find your Oura Ring 4 size
Oura Ring 4 sizes are different from Oura Ring Gen3 sizes. They are also different from U.S. standard sizes. There are 2 options for finding your size before you buy:
Option 1: Order an Oura Ring 4 sizing kit online
Add the sizing kit below to your cart, and a free $10 Best Buy e-Gift Card will be added automatically.*
- Choose from 12 sample rings in the sizing kit
- Wear the ring sample for at least 24 hours to determine your size
- Then, return to this page and use your Best Buy e-Gift Card toward your Oura Ring 4 or other items
Option 2: Get sized in store for your Oura Ring 4
The Oura Ring 4 sizing tool is available at most Best Buy locations. Find a store near you to find your size today.
Watch the videoCompare Oura Ring models
Model |
Oura Ring 4
|
Oura Ring Gen3
|
---|---|---|
Design and material | Fully titanium exterior and interior. Recessed interior sensors at 0.3mm. | Titanium exterior, epoxy interior. Raised interior sensors at 1.3mm. |
Sensing platform | Smart Sensing dynamically selects optimal signal path for accuracy | Fixed, static configuration of optical paths |
Battery | Up to 8 days | Up to 7 days |
Sizing | Sizes 4–15 | Sizes 6–13 |
Membership price | $5.99/month | $5.99/month |
Take control of your health with Oura Ring Gen3
Find your size before you buy with the Oura Ring Gen3 sizing kit (available online only). Oura Ring Gen3 comes in two distinct styles.
Shop Oura Ring Gen3 and Gen3 sizing kit
Oura Ring gives
the gift of health
More power to you with Oura Ring membership
Sleep, readiness, and activity scores are just the beginning. Members also get personal guidance, deep data, and accurate insights delivered daily. Plus, your first month is free.* After that, continue getting the most out of your Oura Ring for $5.99 per month.
With membership, enjoy:
- In-depth sleep analysis, every morning
- Cutting-edge stress, heart health and women’s health insights
- Live, accurate heart rate monitoring
- Body temperature readings for early illness detection
Shop compatible Oura Ring chargers
Disclosures
Free e-gift card with Oura Ring sizing kit:
*Once you’ve used the sizing kit to determine your perfect fit, return to BestBuy.com to order your new Oura Ring in the correct size. You can use your free e-gift card toward your Oura Ring purchase or other items at BestBuy.com.