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  • Front. Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Petal.
  • 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 - 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 9 - Petal - (2025)

Model:
JZ90-57459-09
SKU:
6633666
$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 7 Showing 121-140 of 312 reviews
  • Pros mentioned:
    Battery life

    Great Ring

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

    This was a great purchase. I love all the features and the fact that I don't have to charge it daily. Goodbye apple watch.,

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

    Amazing

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

    Bought this as a gift for my Mother, she absolutely loved it. I have the generation 4 already but not ceramic, I’m quite jealous of how beautiful this looks on!

    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:
    Sleep tracking

    Wife loves it!

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

    Wife loves it! It helps her track all the health and sleep numbers she was curious about.

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

    cool piece of tech

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

    loving this ring! I use it everyday and the sleep data is really neat. has a feature to indicate if you are starting to get sick which is accurate.

    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

    Oura ring 4 is 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! it replaced my other products used to track sleep, exercise, etc.

    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

  • Best purchase of the year!

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

    Ring really gives really good information on your daily activities. Tracks in real time, alerts you when you're idle gir extended periods of time. Tracks sleeping habits and much more. Really good for people recovering from major surgeries. Ask me how I know... lol. Best purchase I've made this year!

    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:
    Sleep tracking

    ceramic oura, great value

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

    great health tracker, got this for a friend and they love it! use the sizing kit first to get your size. app requires subscription after trial

    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

    Ceramic ring

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

    Love the health knowledge that is available. Question the durability of the ceramic style. Still trying to understand all the information available.

    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:
    Design

    Great product.

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

    Clean, elegant and a game changer. In a world where smart watches are dominating. This thing is quickly picking up steam and making a people wake up to a new breed of wearable tech.

    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

  • Great for health tracking

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

    Got this for my boyfriend - he used the sizing guide beforehand so we knew his size. Fits well and so far he is enjoying the information the our app provides.

    This review is from Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Midnight - (2025)

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Husband/Dad

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

    Learning the ring is fun and holds charge well, hope it lasts for years.

    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:
    Sleep tracking

    Love my 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.

    Love it. Really keeps me on track. Helps with weight loss and keeping active. Love that it monitors my sleep and heart beat. It also will help to keep track of you menstrual cycle.

    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:
    Sleep tracking

    The Magic Ring

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

    I purchased this for my wife. She loves it - the app is easy and the ring tracks just about everything related to major health concerns. Allen

    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

    awsome

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

    this was purchased as a gift, my daughter loves it. she has has other brands of this ring, but this sounds like this one is much better...

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

    Awesome! Everything you have heard and more! Wife loves it and wears it daily. Perfect level of interaction and motivation. Highly recommend!

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

    Oura Ring for the win!!!

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    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

  • RECOMENDADO

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

    PERFECTO, UN EXCELENTE PRODUCTO. EL COLOR T Y LA CERAMICA PRECIOSO

    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
  • Pros mentioned:
    Overall performance

    4.5 / 5

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    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
  • Pros mentioned:
    Sleep tracking

    A Woman's Best Friend

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

    Great product for my wife to track her sleep and menstrual cycles

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

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

    Excellent tools for health

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

    excellent prouct and good gadge, good price and improve to care you health

    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
Page 7, Showing 121-140 of 312 reviews
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