Appliances Presidents’ Day SaleEnds 2/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Front. Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Midnight.
  • Size Before You Buy Oura Ring 4 Ceramic Oura Ring 4 Ceramic sizes are different than Gen3 and standard ring sizes
  • Sure, here is the corrected and grouped text: --- **Size Before You Buy Oura Ring 4 Ceramic** 1. **Purchase the Oura Ring 4 Sizing Kit** 2. **Purchase your Oura Ring 4 Ceramic 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 Oura Ring 4 Ceramic with purchase of sizing kit** ---
  • Track it all with Oura Membership - Sleep - Activity - Metabolic Health - Stress - Heart Health - Women's Health 9:41 OURA 88 Readiness 84 Sleep 91 Activity 6 Cycle day A great night's sleep can boost your readiness. If there are any challenges on your to-do list, today could be the day to tackle them! Go get 'em! 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 - Rising heart health, with a dip in stress management - Comfortable for 24/7 wear - Recessed sensors you can barely feel - High performance ceramic - 5 to 8 days of battery life - Water resistant up to 100m
  • HSA/FSA Eligible Oura Ring is eligible for reimbursement with FSA and HSA. Employer or provider plans may vary. Check your administrator's coverage.
  • Over one million members 86% saw an improvement in their sleep quality* 88% saw an improvement in overall health* First month of Oura Membership is free, then $5.99 per month. * Based on a survey with 699 adults who used Oura Ring.
  • What's in the Box - Oura Ring 4 Ceramic - USB Cable - Charger
  • All-Ceramic Exterior Titanium Interior Up to 8 Day Battery Life Temperature Sensing Research Grade Heart Rate & SP02 Sensors for Pinpoint Accuracy
  • Introducing Oura Ring 4 video 0 minutes 39 seconds
  • Oura Ring 4 Ceramic Midnight - 360 View video 0 minutes 06 seconds
  • How to find your Oura Ring 4 size with sizing kit video 1 minutes 02 seconds

Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Midnight - (2025)

Model:
JZ90-57455-08
SKU:
12221722
$479.99
Save $19.01
Comp. Value: $499.00

Customer reviews

Rating 4.6 out of 5 stars with 243 reviews

Rating Filter

Rating by feature

  • Battery Life

    Rating 4.8 out of 5 stars

  • Durability

    Rating 4.8 out of 5 stars

  • Comfort

    Rating 4.7 out of 5 stars

91%
would recommend
to a friend
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 6 Showing 101-120 of 243 reviews

  • Oura Ring

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

    Great purchase. Looks good too. The service was good, helpful on making decisions and proving valuable feedback.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 7 - Midnight - (2025)

    I would recommend this to a friend

  • Oura Ring for the win!!!

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

    My wife loves her Oura Ring, it’s a great accessory along with her Apple Watch to help give her some insight on her health. She loves the color and always gets compliments on it while at work or out an about.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Tide - (2025)

    I would recommend this to a friend

  • 4.5 / 5

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

    Purchased for myself, this is the color my wife likes on me. I ended up returning for the stealth color, a little less flashy for my liking. Overall great product, I would recommend !

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 14 - Midnight - (2025)

    I would recommend this to a friend

  • Sleep

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

    I have enjoyed most the feature for sleeping. I love being able to see how long I slept and how deep.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Cloud - (2025)

    I would recommend this to a friend

  • OURA RING

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

    LOVE THE COLOR AND CERAMIC MATERIAL OF THIS RING. DON’T EVEN FEEL IT ON, SO COMFORTABLE.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 11 - Midnight - (2025)

    I would recommend this to a friend

  • Love my Oura Ceramic Ring 4

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

    I like the health features. I’m impressed by the design and color of the ceramic ring. Functional as well as fine jewelry appearance

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Cloud - (2025)

    I would recommend this to a friend

  • Too heavy

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

    The concept of the ring great. Unfortunately, I had to return it. The ring was in the way of working out ( holding kettlebells and/or dumbbells) and it was very heavy on my pointer finger

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Midnight - (2025)

    I would recommend this to a friend

  • My girlfriend loves it

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

    Very nice, stylish, good for sleep and activity monitoring and in general for health advisory. s

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 7 - Petal - (2025)

    I would recommend this to a friend

  • Excellent purchase

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

    Looks great, fits great and is full featured. Best Buy assisted to make the purchase seamless

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 10 - Cloud - (2025)

    I would recommend this to a friend

  • Ours purchase

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

    I bought for my wife. She loves it. It’s comfortable and records an amazing variety of data.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Midnight - (2025)

    I would recommend this to a friend

  • Needed information!

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

    Info regarding sleep cycle is very important, before this ring I was only able to speculate.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Midnight - (2025)

    I would recommend this to a friend

  • Love the ring

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

    Enjoying the ring. Gives me the health information I was wanting to see.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Cloud - (2025)

    I would recommend this to a friend

  • Amazing ring - 100% recommend

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

    wife loves it, after 2 weeks it tracks everything super well

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Cloud - (2025)

    I would recommend this to a friend

  • Best purchase ever

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

    Ring is very comfortable to wear and the information it provides is amazing. Highly recommend

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Midnight - (2025)

    I would recommend this to a friend

  • love this ring

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

    absolutely love this ring! it works so great. I have been able to track so much

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Petal - (2025)

    I would recommend this to a friend

  • A Girl And Her Ring!

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

    Great concept and like the information it tracks. Wish it could sink with my fitbit

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Midnight - (2025)

    I would recommend this to a friend

  • Oura Ring

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

    Love the Oura ring! It's my second one. I love all the information it provides. Would recommend

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Petal - (2025)

    I would recommend this to a friend

  • Oura ring

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

    It's so accurate. Tracks sleep patterns, activitoes, and stress levels.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Tide - (2025)

    I would recommend this to a friend

  • Might get one for myself also

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

    My wife loves it. Great Christmas present! You wouldn’t be able to tell it’s not just jewelry but more

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 5 - Cloud - (2025)

    I would recommend this to a friend

  • Cloud

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

    Love wearing it everyday! Best purchase I’ve made and such a beautiful color

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 8 - Cloud - (2025)

    I would recommend this to a friend
Page 6, Showing 101-120 of 243 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.