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  • Front. Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Stealth.
  • Alt View 11. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Stealth.
  • 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 Comfortable for 24/7 wear Recessed sensors you can barely feel Fully Titanium Up to 8 day battery life Water resistant up to 100m Rising heart health, with a dip in stress management
  • Alt View 15. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Stealth.
  • Alt View 16. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Stealth.
  • Alt View 17. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Stealth.
  • Alt View 18. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Stealth.
  • 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
  • New App Features for Oura Ring Users video 0 minutes 59 seconds
  • Enhance Your Oura Ring 4 Experience with the Oura Membership video 0 minutes 55 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 Stealth - 360 View video 0 minutes 06 seconds

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

Model:
JZ90-54218-04
SKU:
6595536
Highly rated by customers for:
$399.00

Customer reviews

Rating 4.6 out of 5 stars with 3527 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 admire the Ring 4 for its detailed sleep tracking, overall performance, comfortable design, and great battery life. Many users find the data accuracy to be better than other wearables. However, some customers have reported issues with the size, scratch resistance, and connectivity.

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 154 Showing 3,061-3,080 of 3,522 reviews

  • Great 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 this thing! Such a great way to track your fitness

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

    I would recommend this to a friend

  • Game Changer

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

    Health Game changer. After recovering from surgery, helped me be cognizant of habits including quality of sleep.

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

    I would recommend this to a friend

  • Great ring

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

    It does everything it says, however it does scratch easily, but that’s to be expected I guess

    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

  • Oura ring

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

    Great ring, really like the features this has on 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

  • Wife loves it

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product, pretty rugged for the rose gold look.

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

    I would recommend this to a friend

  • Great gift for wife

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

    Bought as a gift for my wife, she is amazed on the amount of information it tracks. She checks every morning.

    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

  • A Great Gift

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

    Got this as a gift for the holidays for someone else, and they absolutely loved it! The sizing kit is true to form; be sure to use it before purchasing for yourself or someone else.

    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

  • Great Fitness Ring!

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

    I have had each model of the Oura Ring and this is the best one yet!

    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

  • Oura ring 4 gold - fair rating at best

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

    I got this ring because I was trying to track my cycle to have a baby this year. The ring does not provide exact measurements you must link the data to an outside application, which also costs a monthly premium. The ring scratches VERY easily and battery dies way too often. I'd rather just take my temperature manually and use my apple watch. Would not buy again. Said I was always stressed, which I already knew from my therapist...

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

    No, I would not recommend this to a friend

  • Ring

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

    It's a good monitoring system, it works very well for what I was looking for

    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

  • $500 device failed just after warranty — resolutio

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

    I purchased an Oura Ring 4 (Gold, Size 8) in December 2024 for $499 plus tax. By January 2026 — just over one year later — the hardware completely stopped functioning. For a premium health wearable at this price point, I expected multi-year durability. This is not an inexpensive accessory; it is marketed as a long-term wellness device with an ongoing membership subscription. After contacting customer support, I was informed that the ring was outside the 1-year warranty and was offered a $100 discount toward purchasing a new ring. That effectively requires spending another $400+ to replace a device that barely lasted beyond warranty. While I appreciate a gesture, a $100 coupon does not reflect the expected lifespan of a $500 product. Buyers should carefully consider the effective longevity of this device relative to its cost and warranty limitations.

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

    No, I would not recommend this to a friend

  • Oura 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.

    Very good one, correctly tracks all the parameters

    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

  • Great

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

    Excellent item I really love it it really is a very informative tool

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

    I would recommend this to a friend

  • Ours Ring 4

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

    Love the functionality of this device. It adds to the overall quality of my life on a daily basis.

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

    I would recommend this to a friend

  • Could be better

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

    Some nights it was not working properly. Had to return it.

    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

  • Happy Father’s Day

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

    My husband absolutely loves this ring!!! Best purchase ever!

    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

  • Works as it is supposed to

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

    Thing is cool, I don't know what I was expecting but it is great to confirm that my sleep is atrocious and that I am not active enough. Definitely motivating

    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

  • The Oura ring is fantastic for sleep observation.

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

    I am learning about the ring. I still not using it to it's top abilities. It would be nice if Best Buy aq d

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

    I would recommend this to a friend

  • Bought for natural cycles

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

    A lot of features, links well with Natural Cycles birth control program which can be paid with insurance.

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

    I would recommend this to a friend

  • Good

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

    My wife loves it. It keeps up with alot of stuff like body temperature and all

    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
Page 154, Showing 3,061-3,080 of 3,522 reviews
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