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  • Front. Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - 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 12 - Midnight - (2025)

Model:
JZ90-57455-12
SKU:
6633649
Highly rated by customers for:
$499.00

Customer reviews

Rating 4.7 out of 5 stars with 312 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 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

93%would recommend to a friend

Customers are saying

Customers are pleased with the Ring 4 Ceramic's sleep tracking capabilities, comfortable design, and excellent battery life. Many users appreciate the overall performance, stylish design, and color options. However, some customers find the ring's thickness to be a minor inconvenience.

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 8 Showing 141-160 of 312 reviews
  • Pros mentioned:
    Sleep tracking

    Must have!!

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

    Very useful. Love using it to track my sleep!! It also tracks my stress levels which is the main reason I got it.

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

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

    Oura Ring

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    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

  • Beautiful

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

    Beautiful color and great data! I’m loving my new Oura ring

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

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

    Love my Oura Ceramic Ring 4

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    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
  • Pros mentioned:
    Sleep tracking

    Sleep

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    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

  • Great addition

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

    The Oura Ring was recommended to me by a client. I absolutely LOVE IT so far. It's comfortable and very convenient. It keeps me on my fitness and health goals. The battery life is good , but could be better. I still love it

    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
  • Pros mentioned:
    Sleep tracking

    Ceramic Oura ring

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

    Wife loves it for health and biomarker tracking for peace of mind.

    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
  • Pros mentioned:
    Comfort

    OURA RING

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    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
  • Pros mentioned:
    Battery life

    Oura review

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

    I've owned the ring for a month. It's great for monitoring my sleep patterns, hourly stress levels, heart rate, and exercise levels. I typically charge it about once a week.

    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
  • Pros mentioned:
    Overall performance
    Best Buy Employee

    Loving it

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    Best Buy Employee
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The oura ring is an excellent way to learn about your body.

    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
  • Cons mentioned:
    Size, Weight

    Too heavy

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    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
  • Pros mentioned:
    Design

    My girlfriend loves it

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    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
  • Pros mentioned:
    Overall performance

    Excellent purchase

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    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
  • Pros mentioned:
    Comfort

    Ours purchase

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    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
  • Pros mentioned:
    Sleep tracking

    Needed information!

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    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
  • Pros mentioned:
    Comfort

    ceramic ring

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

    bought for the wife and she loves it hasn't said anything bad about it in fact she like it mire than her watch

    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
  • Pros mentioned:
    Comfort

    Best purchase ever

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    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
  • Pros mentioned:
    Sleep tracking

    Love the ring

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    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
  • Pros mentioned:
    Overall performance

    love this ring

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    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
  • Pros mentioned:
    Overall performance

    Amazing ring - 100% recommend

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    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
Page 8, Showing 141-160 of 312 reviews
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