Search  for anything...
OURA

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

    • Based on 1,085 reviews
Condition: New
Checking for product changes
$499.00 Why this price?

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Feb 26
Order within 16 hours and 58 minutes
Available payment plans shown during checkout

Color: Gold


Size: 8


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

Special Feature: Heart Rate Monitor, Activity Tracker


Battery Capacity: 8 days


Connectivity Technology: Bluetooth


Wireless Communication Standard: Bluetooth


Battery Cell Composition: Lithium Polymer


Shape: Ring


Brand: OURA


Model Name: JZ90


Style: Modern


Color: Gold


Product Dimensions: 0.87 x 0.87 x 0.28 inches


Item Weight: 6.7 ounces


Item model number: JZ90-54216-08


Batteries: 1 Lithium Polymer batteries required. (included)


Connectivity technologies: Bluetooth


Special features: Heart Rate Monitor, Activity Tracker


Other display features: Wireless


Human Interface Input: Buttons


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


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • One month in! It's great!
Color: Stealth Size: 9
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. ... show more
Reviewed in the United States on February 19, 2025 by Nicole R.
    • i have never really like any other heath tech device as much as this.
Color: Rose Gold Size: 6
i love my oura ring , its so stylish - literally can make you look drab to dressy and chic.other than good looks - its very efficient ,i can only wear this ting to bed and the app does a fab job at analyzing your sleep parameters.- quality , restfulness, readiness, length (REM, DEEP and many more) love the cycle tracking - tells your your basal body temperature and possible period start dates. has good selection for health tracking and activities . its all in one , all of my family uses it and loves it ! ... show more
Reviewed in the United States on January 29, 2025 by Vatsal Mehta
    • Amazing and very helpful if you have anxiety
Color: Silver Size: 9
The brushed silver is much nicer than standard silver one, the standard silver one is ugly. Brushed silver looks so much better. It tracks sleep very well and gives you great insight to your health. Never would I have thought of spending this kind of money on a health ring, but it helps my anxiety - Just be aware for all the features you have to subscribe and its an annual fee, that is the only down side so far. It also scratches very easily so if you work with your hands, or are clumsy its gonna scuff. ... show more
Reviewed in the United States on February 3, 2025 by Doktor Huxtible
    • Love Love Love my Ring!
Color: Black Size: 8
Review Image by AshleeGrimm AshleeGrimm
I recently upgraded to the Oura Ring 4, and it has completely changed the way I track my health! The sleep tracking is incredibly detailed, providing insights into my sleep stages, readiness score, and recovery. I also love the continuous heart rate monitoring and activity tracking—it helps me stay mindful of my overall wellness without the bulk of a smartwatch. The ring itself is sleek, lightweight, and comfortable, making it easy to wear 24/7. The battery life is impressive, lasting up to 8 days before needing a charge. The sizing kit was super helpful in ensuring the perfect fit. If you're looking for a discreet yet powerful fitness and wellness tracker, the Oura Ring 4 is absolutely worth it! Highly recommend! ... show more
Reviewed in the United States on February 9, 2025 by AshleeGrimm AshleeGrimm
    • Oura Ring 4 - Gold - Size 12 - Smart Ring
Color: Gold Size: 12
The Oura Ring 4 in Gold is a beautiful and sophisticated piece of wearable technology that combines elegance with cutting-edge health tracking features. From the moment I unboxed it, I was impressed by the premium design. The gold finish is sleek and stylish, and the ring has a luxurious feel without being too flashy. It’s lightweight and comfortable, which makes it easy to wear all day and night without any discomfort. The size 12 fits perfectly, and the ring is discreet enough that it doesn’t draw too much attention, making it ideal for those who want a more subtle wearable device. When it comes to functionality, the Oura Ring excels in providing a comprehensive picture of your health and wellness. It tracks a wide range of metrics, including sleep quality, activity levels, heart rate, and body temperature, offering valuable insights into your daily habits. The sleep tracking, in particular, is impressive. The app provides a detailed breakdown of your sleep stages, offering recommendations for improving your rest. This has been a game-changer for me, as I’ve been able to make adjustments based on the data and see improvements in my sleep quality. The activity tracking is also solid, with the ring accurately monitoring steps, calories burned, and movement throughout the day. It provides reminders to stay active, which is a nice touch, especially for those who work at a desk for long periods. The heart rate tracking is generally accurate, though I did notice some slight discrepancies during intense exercise. However, for general daily monitoring, it does the job well. The Oura app is intuitive and user-friendly, with clear graphs and insights that make it easy to understand your data. It’s easy to sync with your phone, and the app provides useful tips for improving your overall health based on the information it collects. However, there are a few drawbacks that prevent me from giving this a perfect 5-star review. The battery life, while decent, could be better. I find myself charging the ring every 3-4 days, which is more often than I expected for a device like this. Additionally, some of the more advanced features, like personalized insights and deeper health data, require a subscription to the Oura app, which adds an extra cost on top of the initial purchase price. This subscription model is a bit frustrating, as I feel that some of the features should be included with the device. Despite these minor issues, the Oura Ring 4 is an excellent smart ring that offers a combination of style and functionality. It’s a great tool for anyone serious about tracking their health and wellness, and it’s perfect for those who want a discreet, comfortable, and stylish wearable. If you don’t mind the subscription fee and don’t mind charging it every few days, it’s definitely worth the investment. Overall, I’m very happy with my purchase and would highly recommend it to others looking for a premium health tracker. ... show more
Reviewed in the United States on January 28, 2025 by Benjamin

Can't find a product?

Find it on Amazon first, then paste the link below.