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  • Front. Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 10 - Petal.
  • Size Before You Buy Oura Ring 4 Ceramic Oura Ring 4 Ceramic sizes are different than Gen3 and standard ring sizes
  • 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 - 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 - Rising heart health, with a din in stress management
  • 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 Petal - 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 10 - Petal - (2025)

Model:
JZ90-57459-10
SKU:
12558392
Highly rated by customers for:
$499.99
Save $104.49
The comparable value is $604.48

Customer reviews

Rating 4.7 out of 5 stars with 473 reviews

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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

Pros mentioned filter

Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers enjoy the product's excellent overall performance, phenomenal sleep tracking, and super comfortable design. They also appreciate its long-lasting battery life, appealing ceramic design, and accurate data, noting its scratch resistance. However, some customers found that the size required an adjustment, and a few mentioned a slight weight on their fingers.

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 17 Showing 321-340 of 473 reviews
  • Pros mentioned:
    Comfort

    Oura ring

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

    Oura Ring delivers deep insights with sleek comfort

    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

    Canton

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

    Works great easy way to follow daily activities and intact

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 15 - Midnight - (2025)

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

    Nice ring

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

    Best purchase ever. It looks nice and I like the insight

    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:
    Sleep tracking

    Oura tracker ring

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

    It is a great tracker. I’m very pleased with the way it is tracking my health

    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:
    Design

    Beautiful ring

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

    Beautiful ring and very functional, I’ll probably get another one for my wife for Christmas.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 6 - Cloud - (2025)

    I would recommend this to a friend

  • Cute color!

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

    I love it and the color is so cute. I wanted something as a tracker for when i play beach volleyball bc my watch can get in the way

    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

  • 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.

    I have only used this product for 30 days. It has been very helpful in picking up a lot of my health habits. I’m curious to see how accurate it is. I’m very happy with it

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

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

    Great

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

    Great great great great great great great great great

    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

  • great

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

    love it I bought it for to track my steps but this offers so much more.

    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
  • Pros mentioned:
    Overall performance

    Aakash

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

    Love the oura ring It has exceeded all of my expectations

    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

  • Love the ceramic option

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

    I like the color and it is way more scratch resistant than the gold and rose gold

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

    I Love it, more than I expected, I really recommend it

    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

  • Stylish and functional

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

    It’s a great tool for helping you get in sync with your health and working to better it. The ring looks great and is comfortable to wear. The accompanying app is user friendly and well thought out.

    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

  • Color is fabulous!!

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

    Loved the ring and the features. Unfortunately, it fit too big. I got sized but when i received it, I felt it was going to fall of.

    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:
    Sleep tracking

    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.

    I love this for all the features it has. I can monitor my stress, sleep and activies.

    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 gift idea

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

    Pull the trigger its worth it. Wife loved the gift.

    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

    Great product

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

    This product is amazing and literally tracks everything

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

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

    Great

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

    Great product. Comfortable. Wear it all the time. Highly recommend

    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:
    Sleep tracking

    Oura ring

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

    I love this ring, I review it in the morning to check my activity and sleep score

    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

  • Patty S

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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 the fit and all the great information that I get from this ring.

    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
Page 17, Showing 321-340 of 473 reviews
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