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  • Front. Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Black.
  • Alt View 11. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • 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 My Health NEEDS CARE THRIVING Rising heart health, with a dip in stress management Comfortable for 24/7 wear Recessed sensors you can barely feel Fully Titanium Up to 8 day battery life Water resistant up to 100m
  • Alt View 15. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Alt View 16. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Alt View 17. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • Alt View 18. Oura - Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 4 - Black.
  • 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
  • Enhance Your Oura Ring 4 Experience with the Oura Membership video 0 minutes 55 seconds
  • How to Get Sized for the Oura Ring 4 video 0 minutes 59 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 - Product Overview video 0 minutes 39 seconds
  • Oura Ring 4 Black - 360 View video 0 minutes 06 seconds

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

Model:
JZ90-54144-04
SKU:
6595485
Highly rated by customers for:
$349.00

Customer reviews

Rating 4.7 out of 5 stars with 4065 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 regard the product highly for its excellent sleep tracking capabilities, overall performance as a self-care smart device, and comfortable, lightweight design. Its great initial battery life and data accuracy are also frequently praised. However, some customers have noted concerns regarding the device's size and its scratch resistance. There are also occasional reports of connectivity issues and a decline in battery life after about a year of use.

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 108 Showing 2,141-2,160 of 4,065 reviews
  • Pros mentioned:
    Overall performance

    Perfect for health stats

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

    Such a great idea, got this as a gift and so worth it!

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 6 - Brushed Silver - (2024)

    I would recommend this to a friend

  • Pura 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.

    Excellent product 100% recommendations very happy

    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

  • So Far So Good

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

    Just over a month and the Oura Ring has been worth the investment. A little off with tracking activities but not a big deal.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 11 - Stealth - (2024)

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

    Oura ring awesome

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

    I love it Does everything I needed it to do for me

    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
  • Pros mentioned:
    Overall performance

    Best buy of the year

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

    Its wonderful to wear and really helps me understand myself

    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
  • Pros mentioned:
    Sleep tracking

    Great gift or for yourself

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

    This is probably one of the best purchase i ever made. It really helps with health. It actually told me I was 4 year younger than what I am, which actually motivated me. To actually work out harder, if you a gym rat this is a must have

    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
  • Pros mentioned:
    Overall performance

    Beutiful Oura ring! And best Smart Ring!

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

    I got the brushed silver finish! The Oura ring is the best in the market for smart ring. The features in the app and the ring is top notch! Oura ring gen 4 fit and finish all titanium and comfortable to wear. All the tracking you need about your health is in this ring is awesome!

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

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

    Great

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

    My husband loves that he can track his health and sleep without a screen. Definitely an upgrade from an Apple Watch.

    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

  • Good investment 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.

    Bought for my son. He is learning how to use it. Seems like a sturdy ring and gives accurate results.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 13 - Brushed Silver - (2024)

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

    Awesome technology

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

    Ring is awesome, makes things very convenient! Would highly recommend.

    This review is from Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 11 - Black - (2024)

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

    Super useful

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

    Super awesome product. Helped a lot learning about my sleep

    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

  • Doesn’t connect or recharge after 1 year

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

    Purchased in April 2025, 500 plus dollars and does not work after 1 year

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

    No, I would not recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great product but terrible company policy.

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

    The ring was fine. The exchange policy is a ripoff.

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

    No, I would not recommend this to a friend
  • Pros mentioned:
    Battery life

    Worth it

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

    Easy instruction, easy use. No hiccups at all with setting up or using. Great life of battery.

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

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

    Oura ring

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

    This item came exactly as described online. Perfect.

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

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

    Outa 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 product! Looks great and works well.

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

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

    Worth it

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

    Worth it and battery life is amazing. Love it more than my gen 3 ring.

    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
  • Pros mentioned:
    Sleep tracking

    Great invention for monitoring your health

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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 for health information on a daily basis. I can keep up with total steps,which is more accurate than my Apple Watch. Get sleep data, plus activity level, alone with information to let me know about any temp changes to alert me about potential infection.

    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
  • Pros mentioned:
    Sleep tracking

    Great 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 am really glad I purchased the Oura ring. It has much more health information than I thought. Quality of sleep, heart rate, activity, stress, body temp, respiratory rate, and more.

    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 device for body monitoring

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

    good device for body monitoring. you can keep your body health

    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
Page 108, Showing 2,141-2,160 of 4,065 reviews
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