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Oura Ring 4 - Gold - Size 4 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life

4.3 out of 5 stars 3,001 ratings

$499.00
FREE Returns
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Color: Gold
Size: 4
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Purchase options and add-ons

Special Feature Heart Rate Monitor, Sleep Monitor
Connectivity Technology Bluetooth, USB
Wireless Communication Standard Bluetooth
Battery Cell Composition Lithium Polymer
Shape Round
Brand OURA
Color Gold
Compatible Devices Smartphone
Display Type Analog
Water Resistance Level Water Resistant

About this item

  • SIZE BEFORE YOU BUY - Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. For additional details, see “From the brand” section below
  • OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Or opt for the annual prepaid option for 69.99. Membership is tied to your account via the Oura App, not your physical ring
  • ACCURACY - SMART SENSING - Oura tracks over 30 biometrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
  • LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
  • DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin
  • SYNC WITH YOUR FAVORITE APPS - Compatible with iOS and Android — Oura seamlessly integrates with over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more
  • HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, Oura Ring Chargers
  • LOOKING FOR THE BEST HEALTH TRACKER? - Whether you’re searching for a sleep ring or fitness ring, Oura Ring 4 is for you — this revolutionary smart ring that allows you to discreetly track your sleep, activity, recovery and stress — in style
Unwell Hydration from Alex Cooper
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Videos for similar products


From the brand


From the manufacturer

Oura Ring 4 is here. Sleeker. Smarter. Made for you.

Size Before You Buy

Oura Ring 4 Sizing Kit

Step 1:

Purchase an Oura Ring 4 Sizing Kit and receive a $10 Amazon credit towards your Oura Ring 4.

Oura Ring 4

Step 2:

Purchase your Oura Ring 4, the $10 credit will be automatically applied at checkout.

Oura App

Step 3:

Slip on your Oura Ring 4 and download the Oura App.

Oura App

Step 4:

New members get the first month of Oura Membership free, then it’s $5.99 per month.

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

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What's in the Box

Oura Ring 4

Oura Ring 4

Oura Ring 4 Charger and USB Cable

Oura Ring 4 Charger and USB-C Cable

What's in the box

  • Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
  • Product information

    Product Dimensions 0.98 x 0.98 x 0.28 inches
    Item Weight 6.7 ounces
    ASIN B0D9WW8V53
    Item model number JZ90-54216-04
    Batteries 1 Lithium Polymer batteries required. (included)
    Customer Reviews
    4.3 out of 5 stars 3,001 ratings

    4.3 out of 5 stars
    Best Sellers Rank #49,459 in Electronics (See Top 100 in Electronics)
    #274 in Smart Rings
    Connectivity technologies Bluetooth, USB
    Special features Heart Rate Monitor, Sleep Monitor
    Other display features Wireless
    Color Gold
    Whats in the box Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
    Manufacturer Oura
    Country of Origin Estonia
    Date First Available October 3, 2024

    Warranty & Support

    Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

    Feedback

    Oura Ring 4 - Gold - Size 4 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life


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    Product Description

    Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 30 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health. Oura Ring 4 quietly and comfortably monitors your health and with up to 8 days of battery life — you can forget it’s even on. Sleeker, smarter and more accurate than ever, Oura Ring 4 is made for you. Oura Ring 4 is FSA/HSA Eligible — we can accept FSA or HSA funds for the following: Oura Ring 4, additional chargers, and shipping. IMPORTANT: Size yourself with the Oura Ring 4 Sizing Kit before you buy — Oura Ring 4 is not US standard sizing, and finding the right size will result in the best experience possible. With an Oura Ring 4 Sizing Kit purchase, a credit will automatically be applied to your Oura Ring 4 at checkout.

    Customer reviews

    4.3 out of 5 stars
    3,001 global ratings

    Review this product

    Share your thoughts with other customers

    Customers say

    Customers find the Oura Ring to be a powerful health tracking tool that provides comprehensive sleep and readiness scores, and they appreciate its comfort and quality, noting it's better than the Apple Watch. The battery life and sizing receive mixed feedback - while some report it lasts about 6 days, others say it only lasts one month, and while some find it perfect for sizing, others note the sizes don't match standard ring sizing. Functionality and value for money also get mixed reviews, with some saying it's well worth the price while others find it overpriced.

    AI-generated from the text of customer reviews

    160 customers mention "Health tracking"140 positive20 negative

    Customers appreciate the health tracking features of the ring, particularly its ability to track sleep, stress, and maximum heart rate, with one customer noting it's good at spotting fitness events.

    "...However, the ring really is good at spotting fitness "events" and I love that when opening the app, there's a backlog of events that you have to..." Read more

    "...science will like this, you can literally experiment and see the exact results for yourself. Accuracy: I would say this is 95% accurate...." Read more

    "...I’ve already recommended it to several people because it’s been that impactful. If you’re on the fence about it, just go for it—you won’t regret it!" Read more

    "...While the data it provides is valuable, I wish they would offer a one-time purchase option or a more affordable subscription plan...." Read more

    159 customers mention "Sleep tracking"120 positive39 negative

    Customers appreciate the ring's sleep tracking features, which provide insights into sleep habits and activity levels, with one customer noting its accurate monitoring of heart rate and sleep parameters.

    "...fitness "events" and I love that when opening the app, there's a backlog of events that you have to confirm the type of activity...." Read more

    "...It’s increased my understanding of sleep, the importance of exercise for sleep, and dare I say, made me a better person...." Read more

    "...The sleep tracking is fantastic! It's been incredibly insightful to see our sleep patterns and get data on our heart rate and activity levels...." Read more

    "...Next, the Sleep function, even with learning curve, seemed to function out of the box, HOWEVER, after the first recharge of the Ring 4, there was an..." Read more

    107 customers mention "Ring quality"100 positive7 negative

    Customers find the Oura Ring to be fantastic and amazing, with one customer describing it as a perfectly lovely wellness ring.

    "...If you’ve never had an Oura ring: this product is amazing. So comfortable, more so than a watch...." Read more

    "...It’s an incredible device that gives me real insight into how I’m feeling, what’s going on with my body, and even why certain things might be..." Read more

    "...It helps me track my sleep and activity much better than my Apple Watch. It was super easy to set up and the app is very good...." Read more

    "...I guessed on my size and it’s perfect. It automatically knows when I am working out or going for a walk...." Read more

    91 customers mention "Comfort"72 positive19 negative

    Customers find the Oura Ring comfortable and easy to wear, particularly for sleeping, with one customer noting it feels like you're not wearing it at all.

    "...One month later, I am glad I went with the smaller size. No discomfort and still using water in the morning to take off the ring before I..." Read more

    "...Conclusion: I love the Oura ring. It’s more comfortable than an Apple Watch or a woop in my experience. Way, WAY more comfortable...." Read more

    "...The ring itself is sleek and comfortable to wear, and the battery life is truly impressive – lasting nearly a week...." Read more

    "...I went one size up from my normal ring size, and it fits very comfortably and stays put during these activities...." Read more

    161 customers mention "Functionality"103 positive58 negative

    Customers have mixed experiences with the ring's functionality, with some enjoying all its features and finding it very useful, while others report it failing soon after purchase or stopping working within three months.

    "...simply encouraging me to be more active, which has lead to a good impact on my health. Overall, pretty satisfied with the ring...." Read more

    "...on things before I’m consciously aware of them, which helps me get ahead of potential issues or make adjustments to my activity, sleep, or habits...." Read more

    "...watch, of course, because it does not display messages and does not have access to apps that I use. The best of all worlds is to have both." Read more

    "...far, far lower cost AND the same updates, assessments, insights and suggestions BUT with NO subscription fee...." Read more

    126 customers mention "Battery life"56 positive70 negative

    Customers have mixed experiences with the ring's battery life, with some reporting it lasts days while others mention it only lasts one month or needs charging every 3 days.

    "...Edit: a little disappointed the battery lasts 4-5 days not 8 like they claim" Read more

    "...One of the standout features for me is the battery life. It lasts several days—almost a week—which is impressive for how much data it’s tracking...." Read more

    "...It does NOT get the battery life they advertise. I'm getting about 5 days on a charge...." Read more

    "...The ring itself is sleek and comfortable to wear, and the battery life is truly impressive – lasting nearly a week...." Read more

    123 customers mention "Sizing"76 positive47 negative

    Customers have mixed experiences with the sizing kit, with some finding it perfect for their index finger while others report it being much larger than anticipated.

    "...The new size is great for me. My old ring was snug on my ring finger...." Read more

    "I like the ring but my ring size is too big and the website is unclear on how to exchange the size." Read more

    "...Comfort-wise, it’s spot on. It’s the exact same size as my old ring, so it doesn’t feel any different even though they recommend wearing it on your..." Read more

    "...an seemingly identical App for all appearances seen, comes as an adjustable ring using the same high-end materials and sensor setup AND which..." Read more

    123 customers mention "Value for money"39 positive84 negative

    Customers have mixed opinions about the ring's value for money, with some finding it worth the cost while others feel it's not worth the price tag, particularly due to ongoing subscription costs.

    "...expensive, adding a monthly subscription feels unnecessary and a bit greedy...." Read more

    "...It does give the average value during sleep, and it seems to think my sleep is ok, which reassures me that I probably don't have sleep apnea...." Read more

    "...While understandable, it makes it impossible to fully assess the personal value and utility of the Ring 4 in the 30-day period for returns...." Read more

    "...The fitbit I had before was much better! So to me the price is not worth it, at all! In fact I cant wait to return it!..." Read more

    Good but bulky.
    4 out of 5 stars
    Good but bulky.
    Ordered this to help track vitals and health info as I navigate perimenopause. The features are helpful, though it takes about 60 days to gather enough information to establish enough data for patterns. The ring seems to hold a charge for 3-4 days before needing to charge again. The biggest drawback (aside from the monthly/annual fee in addition to the price of the ring) is the thickness of the ring. For someone with smaller hands, this ring is quite gaudy. It separates my fingers and feels very awkward. I think perhaps wearing it on a pointer finger would help minimize the awkwardness. However, in trying to reduce the amount of stress on the ring by wearing it on a lesser used finger, I am hoping to reduce wear and tear to the ring. Overall, it is a practical tracker and I am enjoying the benefits of the ring. I do hope they will continue to slim down the ring’s profile for future models.
    Thank you for your feedback
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    Top reviews from the United States

    • Reviewed in the United States on February 19, 2025
      Color: StealthSize: 9Verified Purchase
      I've been wearing the oura ring gen 4, stealth, size 9 for exactly one month now.

      First off, sizing.
      I was between sizes 9 and 10. I opted for the smaller size using this little test: Using the plastic ring sizes, if you cannot take off the ring in the morning when your fingers are puffiest, and the only way to do so is by wetting your finger to add some slippage, then that's the right size. With the bigger size, I was able to take off the ring in the morning without using water so I felt that size was too big. One month later, I am glad I went with the smaller size. No discomfort and still using water in the morning to take off the ring before I shower.

      Comfort
      I wear it on my right index finger. I did not like in between fingers, which is the reason I wear a silicone wedding band. But overall, it's not very intrusive. It's annoying to write with a pen or pencil but that's not often.

      Appearance
      I love the stealth color. Already got a few scratches on my palm side, which is a little annoying. But I tell myself that at least the back of my hand, the ring looks like new. I use these silicone protectors when working out with weight and it does a great job. The scratches came from handling things where I should have taken off my ring. I wish there were some way to make the scratches less visible as these scratches you see a shiny silver metal which contrasts a lot!

      Battery
      No issues. I charge it every few days or so while I shower. I am manually trying to keep the battery at between 25% and 75% but most often I forget that I left it charging and it goes back to 100%.

      Sleep Tracking
      I'm not a power user. I enjoy checking in the morning my sleep score and compare it to how I thought my sleep went the night prior. Pretty accurate sleep tracking in my opinion.

      Fitness Tracking.
      So we all know that the step counter is way off so I don't really care about that. However, the ring really is good at spotting fitness "events" and I love that when opening the app, there's a backlog of events that you have to confirm the type of activity. My top three are: housework, walking, and HIIT. The app gets better at recognizing the events so most times I am just confirming instead of categorizing. Overall, this level of tracking is simply encouraging me to be more active, which has lead to a good impact on my health.

      Overall, pretty satisfied with the ring. Glad I got it.
      138 people found this helpful
      Report
    • Reviewed in the United States on March 18, 2025
      Color: BlackSize: 7Verified Purchase
      I’ve been supporting Oura since it was a kickstarter. I had the version 3 and decided not to upgrade but since my spouse lost her ver 3 I gave her mine and ordered this.

      If you’ve never had an Oura ring: this product is amazing. So comfortable, more so than a watch. The app is great, I’ve learned so much about sleep habits, what to do and not to do for sleep. Lovers of science will like this, you can literally experiment and see the exact results for yourself.

      Accuracy: I would say this is 95% accurate. Again, I’ve been using this for about 5 years. So I’ve seen the accuracy improve IMMENSELY over the years. Version 4 is the best yet. Better than any other sleep tracker I’ve tried and I’ve tried a lot. The biggest inaccuracy is every now and then I’ll get up to pee in the middle of the night and it will think I woke up for the day. Sometimes it knows I just went to pee sometimes not. Since I noticed it, I take my ring off if I get up to go to the toilet and it fixes the issue—just don’t forget to put it back on!

      Key info for consumers: the fit is slightly larger than the version 3. To be exact I would say the version 4 is about half a size larger. So the new size 7 for example, would be a size 7.5 on the old version 3 and older models.

      The new size is great for me. My old ring was snug on my ring finger. So now I can wear the new one on my pointer finger and even middle finger depending on how hot it is. It all depends on the temperature outside due to our hands expanding/shrinking in heat/cold. Hot days I’ll wear on my ring finger, cold days I can wear on my index or middle finger.

      Conclusion: I love the Oura ring. It’s more comfortable than an Apple Watch or a woop in my experience. Way, WAY more comfortable. It’s also very accurate and the info is extremely useful. It’s increased my understanding of sleep, the importance of exercise for sleep, and dare I say, made me a better person. Getting better sleep takes effort, and this is merely a tool to help you do that. Getting better sleep can 100% make you a better person and I speak from my own experience.
      190 people found this helpful
      Report
    • Reviewed in the United States on March 28, 2025
      Color: SilverSize: 9Verified Purchase
      The Oura Ring has easily become one of my top purchases—not just of this year, but honestly, of all time. It’s an incredible device that gives me real insight into how I’m feeling, what’s going on with my body, and even why certain things might be happening. Sometimes it even picks up on things before I’m consciously aware of them, which helps me get ahead of potential issues or make adjustments to my activity, sleep, or habits. It’s made a real difference in how I approach my day-to-day life and helped me make better decisions for my health and well-being.

      One of the standout features for me is the battery life. It lasts several days—almost a week—which is impressive for how much data it’s tracking. I also love that it’s not pushy with recommendations like some other health apps or gadgets. It’s more like having a helpful guide that you can check in with as you choose, rather than something that’s constantly nagging you to change your routine.

      Comfort-wise, it’s spot on. It’s the exact same size as my old ring, so it doesn’t feel any different even though they recommend wearing it on your index or middle finger. I’ve been wearing it on my ring finger without any issues—my readings are great, and it’s held up perfectly. It’s durable, waterproof, and just feels like a natural part of my routine now.

      I’ve already recommended it to several people because it’s been that impactful. If you’re on the fence about it, just go for it—you won’t regret it!
      52 people found this helpful
      Report

    Top reviews from other countries

    Translate all reviews to English
    • Felix Sng
      1.0 out of 5 stars Oura Ring cannot be delivered to some locations.
      Reviewed in Singapore on March 1, 2025
      Color: Sizing KitSize: Sizing KitVerified Purchase
      Great sizing tool. However, Amazon SG doesnt allow the actual Oura Ring to be delivered. The status has been “Ordered Received…”
    • Flavio López
      5.0 out of 5 stars Es un excelente producto
      Reviewed in Mexico on December 22, 2024
      Además del servicio y puntualidad de entrega, es un producto extraordinario, gran herramienta para conocernos
      Report
    • G.Braidotti
      5.0 out of 5 stars Indicatori utili per la salute
      Reviewed in Italy on May 11, 2025
      Color: BlackSize: 11Verified Purchase
      Avevo già il primo modello, mi interessava capire qualcosa di più di questi dispositivi, anche a livello professionale. Avevo interrotto l’abbonamento infastidita dalla scoperta che il dispositivo da solo non basta: senza sottoscrivere il fee annuale non si ha accesso ai dati. Quest’anno ho ripreso, dopo un po’ di ricerche, il nuovo Oura ed è davvero ricco di funzioni. Per ora direi ottimo.
    • Kindle Customer
      5.0 out of 5 stars Satisfecha con el producto
      Reviewed in Mexico on December 11, 2024
      Color: Sizing KitSize: Sizing KitVerified Purchase
      Satisfecha con el producto
    • Jean-Michel
      5.0 out of 5 stars Perfekte Möglichkeit Schlaf zu analysieren
      Reviewed in Germany on April 18, 2025
      Color: StealthSize: 10Verified Purchase
      Würde ich noch mal kaufen