4th of July SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Black.
  • Alt View 11. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Sure, here is the corrected and grouped text: --- **Size Before You Buy Oura Ring 4** 1. **Purchase the Oura Ring 4 Sizing Kit** 2. **Purchase your Oura Ring 4 after learning your size** 3. **New Oura Members get one month free, then it's $5.99/mo.** --- **Receive a $10 Best Buy gift card to use towards your Oura Ring 4 with purchase of sizing kit** ---
  • Track it all with Oura Membership - Sleep - Activity - Readiness - Stress - Heart Health - Women's Health 9:41 OURA Readiness: 88 Sleep: 84 Activity: 91 Cycle day: 6 Heart rate: 88 Go get 'em! A great night's sleep can boost your readiness. If there are any challenging tasks on your to-do list, today could be the day to tackle them! Learn more Sleep: GOOD New Oura Members get one month free, then it's $5.99/mo.
  • Incredible accuracy powered by Smart Sensing Get a holistic view of your health My Health NEEDS CARE THRIVING Rising heart health, with a dip in stress management Comfortable for 24/7 wear Recessed sensors you can barely feel Fully Titanium Up to 8 day battery life Water resistant up to 100m
  • Alt View 15. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Alt View 16. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Alt View 17. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Alt View 18. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • URA 4 Oura Ring 4 Gifting & Sizing Kit for Oura Ring 4. Sold separately: SKU 6600289.
  • Oura’s Most Accurate Health Data Yet on the Oura Ring 4 video 0 minutes 49 seconds
  • Enhance Your Oura Ring 4 Experience with the Oura Membership video 0 minutes 55 seconds
  • How to Get Sized for the Oura Ring 4 video 0 minutes 59 seconds
  • Inside the Insights with Oura's Jason Russell video 2 minutes 46 seconds
  • Expert Review by Will Armijo for Oura Ring 4 video 1 minutes 08 seconds
  • Oura App Update video 0 minutes 46 seconds
  • Oura Ring 4 - Product Overview video 0 minutes 39 seconds
  • Oura Ring 4 Black - 360 View video 0 minutes 06 seconds

Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Black - (2024)

Model:
JZ90-54144-04
SKU:
6595485
Highly rated by customers for:
$349.00

Customer reviews

Rating 4.7 out of 5 stars with 4054 reviews

Rating Filter

Rating by feature

  • Battery Life

    Rating 4.7 out of 5 stars

  • Durability

    Rating 4.6 out of 5 stars

  • Comfort

    Rating 4.7 out of 5 stars

Pros mentioned filter

Cons mentioned filter

93%would recommend to a friend

Customers are saying

Customers regard the product highly for its excellent sleep tracking capabilities, overall performance as a self-care smart device, and comfortable, lightweight design. Its great initial battery life and data accuracy are also frequently praised. However, some customers have noted concerns regarding the device's size and its scratch resistance. There are also occasional reports of connectivity issues and a decline in battery life after about a year of use.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 82 Showing 1,621-1,640 of 4,054 reviews

  • Oura

    |
    |
    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have now purchased two of these rings one for me and one for my friend because honestly, I really love this ring.I love everything about this. I love that it shows you all of your vitals nothing has been an accurate so far. The invention of this product has honestly been one of the best things that has ever happened to mankind, and I will continue to recommend it to my friends and family.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Black - (2024)

    I would recommend this to a friend

  • Definitely recommend

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The Oura ring is so much more detailed than the Apple watch. Definitely glad I made the switch! 10/10 recommend if you’re wanting to get more in touch with your health!

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 6 - Silver - (2024)

    I would recommend this to a friend

  • Oura Ring - Size 9

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love the Oura Ring. It tells you a lot of great information regarding your health. I would go up a size to make sure that it fits good.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Silver - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Best purchased

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The best purchased that I have ever made. I would recommend this for sure

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 11 - Silver - (2024)

    I would recommend this to a friend

  • My Stealth Oura Ring 4

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Overall, I love the ring’s ability to completely perform all the functions it has suggested and what had been programmed. It is accurate with data, reminders and gives great information and insights of what I could do to improve my day. However, the physical integrity is questionable. Within a year, the color starts to fade. I wish it would have stayed with its natural tone for longer. That’s my only regret. Otherwise, it is an absolute amazing companion to have for monitoring your progress.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Works great

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love it and works great. I would recommend it to anyone.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 7 - Rose Gold - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great product

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought for my husband for Christmas, he’s not super into smart technology but he loves this! Made me want to get one for myself as well!

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 10 - Stealth - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Comfort

    Outs for your health!

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The new version of the Oura Ring (4) is much more comfortable than the 3! It pairs beautifully to wear everyday and the insights are so on point. Recently I woke up just feeling off and the app told me that it detected changes. It also is spot on with my cycle, the sleep and readiness score are super helpful. I’ve owned an Oura for almost 3 years. Recently got the newest version and it is completely worth it.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Gold - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Sleep tracking

    Love it

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I really like how it tracks my stress and sleep. I have trouble sleeping and wake up many times throughout the night & now I am able to see it on my app.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 6 - Silver - (2024)

    I would recommend this to a friend

  • We got pregnant!

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Absolutely love my Oura Ring. It helped me track my ovulation and become more in tune with my body and now I’m pregnant! Such an amazing tool for women’s health and wellness. So grateful and excited for this journey

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 10 - Gold - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance, Sleep tracking

    The wife loves it

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ring works perfectly. Tracks all the information she was wanting

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Gold - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Oura Rings

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Absolutely happy with the purchase of the Oura Rings. Purchased one for my wife and myself. We both feel like they great.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Silver - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great purchase

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Went in store for sizing and placed the order online. Shipping was on time.My wife loved this ring. It is very informative and helps her keep on track with her goals. I wasnt very informed on this ring at all. I just knew she wanted it. And from what ive seen the ring does more than i expected. Overall very satisfied with the purchase.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 7 - Gold - (2024)

    I would recommend this to a friend
  • Cons mentioned:
    Size

    Sizing kit

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great ring I had to exchange for a size smaller. Would recommend the sizing kit

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 13 - Black - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Sleep tracking

    Worth It!!

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is the best product for tracking sleep and daily refined. Worth it

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 11 - Rose Gold - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Comfort

    It’s great!

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to use and out of the way, I almost forgot I have it on! Love it

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 10 - Silver - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Sleep tracking

    Love my ring!

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great tool to track your sleep and fitness! I’ve slowly made changes to my habits thanks to the ring. No regrets and would recommend!

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 11 - Stealth - (2024)

    I would recommend this to a friend

  • Oura ring

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have found the aura ring useful. It helps me recognize and validate how I feel, lol. It's been interesting watching the date and trends and understanding how my life choices affect my physical health. The fit has been a little challenging even though I went to the store and tried on the tester sizes first. I have large knuckles and thin fingers. I got my ring towards the end of summer and it fit rather snug at the time. Once the weather cooled off and possibly just changes in hormones, diet, and water retention, etc the ring became much looser and the heart rate wasn't being recorded consistently. I ordered some products online to help with the fit when it gets loose and that seems to be working pretty well. So, overall happy with the oura ring.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Silver - (2024)

    I would recommend this to a friend
  • Pros mentioned:
    Comfort, Sleep tracking

    Oura Ring 4

    |
    |
    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to set up, and pretty accurate recording my sleep. Comfortable on my finger, more so than a fitbit on my wrist.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Black - (2024)

    I would recommend this to a friend

  • Great gadget

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My boyfriend loves it, he register everything in the app, specially sleeping hours. the oura ring 4 is big size friendly, he’s size 15

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 15 - Stealth - (2024)

    I would recommend this to a friend
Page 82, Showing 1,621-1,640 of 4,054 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.