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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 3,658 reviews
Condition: New
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$499.00 Why this price?

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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Jun 24
Order within 13 hours and 38 minutes
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Color: Gold


Size: 8


Features

  • 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 womens 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 youre free to forget its 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 youre 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

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.

Battery Capacity: 8 days


Connectivity Technology: Bluetooth


Wireless Communication Standard: Bluetooth


Battery Cell Composition: Lithium Polymer


Shape: Ring


Brand: OURA


Color: Gold


Age Range (Description): Adult


Compatible Devices: Smartphone


Display Type: No Display


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


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: Tuesday, Jun 24

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.

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  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • It’s worth it- but here is why: 6 month review!
Color: Gold Size: 8
Review Image by Chibudom Yanez Chibudom Yanez
Review Image by Chibudom Yanez Chibudom Yanez
I bought this ring for Christmas ! And I wanted to wait six months to write a review just to make sure that I didn’t over hype it just from the initial shock of it being great. Off the bat it’s so much more accurate than any other tracker that I have. I’ve worn multiple trackers at once to see which ones accurate in the ordering beats at every single time. I love that it’s waterproof and really feels more waterproof than a soggy band on a watch. The main thing I really enjoy this for is natural family planning. Takes your temperature and it allows you to confirm ovulation with a lot more accuracy than just the strips. So if you’re looking to conceive or use natural family planning to not get pregnant, this is game changer! Huge win if you have a health savings account, it’s fully covered and you can use that money to buy it!!! Small things to note: These are my least favorite parts of the ring/ wish I knew , though it still wouldn’t sway me from not loving it. - I got it in the Gold because I read reviews that it would be not as banged up or scratched, and I feel like after six months I can say it’s pretty dull and pretty scratched up. - The website also claims that his has up to seven days of battery charging power and I don’t believe that to be true. I don’t think I’ve ever gotten a charge longer than 4 1/2 days( still better than daily). - People don’t tell you that the ring does not work without the subscription so it is a bit of an investment all the way around, but I still think it’s worth it. - the best analytics come after 45 days of keeping the ring which is slightly after the window of being able to return it. That part is a catch 20/20. The time it takes give you the full information versus the window. You have to return it if you don’t like it don’t match up. - DO NOT BUY without the sizing kit. It is not even close to normal ring sizes. FYI- I purchased the gold, 4th generation. Hope that helps. ... show more
Reviewed in the United States on June 19, 2025 by Chibudom Yanez Chibudom Yanez
    • I love it!
Color: Silver Size: 8
I don't like wearing wrist watches, so having a smart ring is PERFECT for me! I love how durable it is, it's easy to clean, and the app that comes with it is GREAT! The tracking on this thing is flawless and it uses light sensors to track my vitals, so it doesn't even feel like a smart device, just a regular ring! It also charges very quickly, so if I'm using the bathroom or taking a shower at home, I just pop it on the charger for 10-15 minutes and it's good for a few days! I only do it daily just to establish a good routine, and I have forgotten before and let the battery get low, but still haven't had the power die on me yet! I can see it being an issue for lifting weights since it's coated in stainless still and a little bulky, but otherwise very comfortable for other forms of exercise! I can also see it being a problem because of the red and green light sensors at night, it might be disruptive to light sleepers in a dark room, but I just keep my hands under my blankets or pillows, and I sleep just fine! It doesn't light up all the time, just periodically throughout the night. If the tiny lights at night might bother you, you can probably put a thick sock or a glove over your hand at night to block the light. I'm personally not inconvenienced by it at night, and I like that I can't feel anything when it checks my vitals (heart rate, blood oxygen, temperature, just to name a few). I wound up subscribing to the app anually because I really liked how easy it was to set up and how thorough its analysis was for my overall health. ... show more
Reviewed in the United States on June 13, 2025 by Allison K
    • Wish I bought this sooner
Color: Stealth Size: 10
I’ve had my Oura ring for about 2 weeks now, and so far I love it. I bought a “random” cheaper ring first, because the price tag and subscription for Oura turned me off, but the other one didn’t work. I returned it and figured I’d try this. First off, get the sizing kit. If you try to guess based off of other rings, you’ll probably be disappointed. I sized it off of my pointer finger, with the intent to move it to smaller fingers as I start losing weight. (I have no interest in having to buy multiple rings if I can avoid it.) It can be worn on either hand, so I have lots of options to swap too as I hit my goals. The ring isn’t tiny, but it’s not obstructive. I’ve gotten used to it and it doesn’t bother me at all. I can shower with it on, wash my hands, go swimming…all the things. As for the tech and the app, super user friendly and easy to use. Everything is pretty intuitive and the data that doesn’t automatically make sense comes with explanations. You can see how everything ties together. Its predictive nature is also 2-for-2 for me. It’s reads your data in its entirety and tells you when things are a little off. I got a warning one morning when I woke up, and spiked a fever that evening. It’s also accurately predicted the timing of other things that women may find useful. One of the main reasons for me getting the Oura was to track sleep. In my opinion, it’s been pretty spot on. If I feel like I’ve laid in bed all night staring at the ceiling, my data matches that. If I feel like I passed out as soon as my head hit the pillow, the data matches it. When I wake up feeling super refreshed, and check the app, it says I slept well. When I wake up feeling like crap, surprise! The app says I slept horribly. From there, it sets your activity target for the day - based on how rested your body is. All in all, I am very happy with my purchase. Only regret is that I spent so long deciding if I really wanted it or not. But, I guess the good thing is that it seems like this model (Oura 4) has fixed a lot of problems some of the older models had. Definitely recommend! ... show more
Reviewed in the United States on May 14, 2025 by halipino808

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