Oura Ring 4 - Gold - Size 7 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible
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FREE 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.
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Availability:
Only 3 left in stock, order soon!
Arrives
Aug 4 – Aug 13
Recently Viewed
Style: Metallic
Color: Gold
Size: 7
Features
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, 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
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
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 50 health metrics including sleep, readiness, activity, heart health, stress, metabolic health, and women’s health. Oura Ring quietly and comfortably monitors your health and with 5 to 8 days of battery life — you can forget it’s even on. With multi-ring support, change Oura Ring 4 styles as easily as changing your outfit. If you have two or more Oura Ring 4 styles, you can now switch easily between different finishes in the Oura App.
Operating System: iOS, Android
Special Feature: Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Polymer
GPS: GPS Via Smartphone
Shape: Round
Brand: OURA
Model Name: Ring 4 Smart Ring
Style: Metallic
Operating System: iOS, Android
Additional Features: Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
GPS Geotagging Functionality: GPS Via Smartphone
Band Material Type: Titanium
Case Material Type: Titanium
Water Resistance Level: Water Resistant
Human Interface Input: Buttons
Supported Application: iOS, Android, Health Tracking, Fitness, Productivity, Smart Home, Lifestyle
Water Resistance Depth: 100 Meters
Supported Satellite Navigation System: GPS
Controller Type: self-developed
Metrics Measured: Body Temperature, Menstrual Cycle, Sleep Duration, Stress
Closure Type: Slip On
Shape: Round
Style Name: Metallic
Color: Gold
Band Color: Gold
Connectivity Technology: Bluetooth
Wireless Compability: Bluetooth
Communication Feature: Bluetooth
Item Weight: 0.18 Kilograms
Item Dimensions: 1.1 x 1.1 x 0.28 inches
Brand: OURA
Model Name: Ring 4 Smart Ring
Target Audience: Unisex Adults
Age Range Description: Adult
Model Number: JZ90-54216-07
Built-In Media: Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
Warranty Description: 1 Year Manufacturer
Wearable Computer Type: Smart Ring
Manufacturer: Oura
Unit Count: 1.0 Count
Battery Cell Type: Lithium Polymer
Battery Average Life: 5 days
Battery Charge Time: 80 minutes
Display Type: No Display
Compatible Devices: Smartphone
Compatible Phone Models: Compatible with iOS and Android devices
Warranty Type: Standard/Full warranty
Waterproof Rating: IPX4 (predicted)
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 4 – Aug 13
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Pay in 4
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- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Style: Metallic
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. UPDATE: Recently I noticed the ring was draining too fast between charges and I actually needed to charge it everyday! I reached out to customer service via the app, they asked a few questions, and shipped me another one immediately! It was refurbished, not brand new, but it works like new and I would never have known the difference if they didn't tell me! I keep the old one as a backup just in case since they said I don't need to send it back. I basically haven't stopped wearing the Oura ring since I put it on, and I've used it on long walks, swimming (fully submerged in water), and for general daily activities and it works great! I wash it with soap and water when I wash my hands and take it off to give it an.wxtra good wipe down before popping it on the charger or putting it back on!
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Reviewed in the United States on June 13, 2025 by Allison K
Style: Metallic
Color: Silver
Size: 8
MI have only been using the Oura Ring 4 for about four months, and it has completely changed the way I understand my body. As a woman, the cycle tracking alone has been incredibly valuable. Being able to see how different phases of my cycle affect my sleep, recovery, stress levels, energy, and overall readiness has helped me make much better decisions about work, exercise, and self-care. Instead of wondering why I feel different from one week to the next, I finally have data that helps me understand what is happening and adjust accordingly. The sleep tracking has been especially eye-opening. I thought I had a decent understanding of my sleep habits, but Oura showed me patterns I would never have noticed on my own. The stress tracking has also helped me become much more aware of when I need to slow down, recover, or prioritize rest before I burn out. I previously used RingConn, and in my experience Oura is on a completely different level. The insights are more meaningful, the app is more polished, and the overall experience feels much more focused on helping you understand and improve your health rather than simply collecting data. I know some people hesitate because of the subscription, but honestly, I think it is absolutely worth it. The value comes from the quality of the insights and the way the information is presented. It has helped me make tangible changes to my daily habits and overall well-being. Only four months in, and I already recommend Oura to all of my friends. It is one of the few health and wellness purchases that has genuinely exceeded my expectations. If you are looking for a wearable that helps you better understand your sleep, stress, recovery, and cycle health, I cannot recommend the Oura Ring 4 highly enough.
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Reviewed in the United States on June 24, 2026 by Grace W.
Style: Metallic
Color: Silver
Size: 12
Note: This is a long term review, after owning the ring for 10 months. It disappoints me to have to give this a 1 star review, because when the ring works, it works. It’s very convenient, accurate, un-intrusive to wear, and gives you a ton of valuable data, especially related to your cardiovascular system. But, out of the blue about 10 months into my ownership, battery life has cratered, and even when it doesn’t run fully discharged, it has randomly started disconnecting, meaning it’s not harvesting the data that I expect and want it to, and even worse, without full days of data, it won’t build any trends, meaning the limited data it does collect is useless. Reading online it seems I am not the only person experiencing this disappointment. Oura’s customer service is non existent. I have yet to figure out how to get in contact with a human there. All their customer service is routed through “Finn” their AI assistant. After trying everything that “Finn” has recommended numerous times, and getting nowhere, it would be an understatement to say I am frustrated. One of “Finn’s” suggestions is to fully wipe the ring and app from your phone and reinstall it, and if that doesn’t work, the implication from the system is that it will then elevate it to a customer service rep. The issue with that is when you do that, a hard reset and reinstall, the record with “Finn” also seems to go with it, so the system will never engage a human, it comes across almost like it’s intentional firewall in their service. I am coming up on my 1 year membership renewal. I am at the point where I need to decide if I need to make the $72 annual investment again. I would gladly spend that again, but I’m not really looking at a $72 investment. Given my current ring performance, this means buying another ring. Between the membership and a new ring, with taxes, shipping, etc, etc, etc that’s a near $500 investment; and since it only made it 10 months, that really means it’s effectively closer to $600 a year. Battery powered wearables have a limited life; I went into this understanding that, but, I don’t think that after less than a year of usage, going from ~5 days of battery life and collecting non-stop data to less than 24 hours of life with random crashes is in any way acceptable. Apple or Garmin or Google would have mass recalls or replacements on their hands if their wearables behaved like this. Good health is priceless. The ring helped me tremendously in my fitness journey. I have lost over 65 lbs with its help. At this point, however, given I have hit and am maintaining my weight goal, and from my current experience as well as based on what I read from others online, I refuse to spend any more money with Oura, simply because of their poor customer service and poor product life. My final thoughts: the ring makes your fitness journey significantly easier. Data is king when you’re committed to self improvement. For that, I give it 5 stars; but if you buy one, understand that it most likely will not make it to a year without some sort of collection or battery issue. You have to decide for yourself if $500 for 10-ish months of data is a fair price to pay.
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Reviewed in the United States on September 13, 2025 by Josh A.
Style: Metallic
Color: Gold
Size: 8
I’ve been using the Oura Ring 4 daily, and I’m very impressed with its design and functionality. It’s lightweight, comfortable to wear all day, and doesn’t feel bulky at all. The health tracking features are very detailed, especially sleep and activity insights, which have helped me better understand my daily habits. The app is easy to use and provides clear information. The finish in gold looks elegant and high quality. One important thing is to make sure to measure your size correctly before purchasing, as the fit is very important for comfort and accuracy. Overall, I’m very satisfied with this smart ring and would definitely recommend it for anyone interested in health tracking in a minimal and stylish form.
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Reviewed in the United States on June 2, 2026 by yenier yera
Style: Metallic
Color: Brushed Silver
Size: 13
The Oura Ring 4 has truly been a game changer for me! As someone living with chronic illnesses, being able to better understand my body, track my patterns, and recognize changes has been incredibly valuable. This ring gives me insight into things like sleep, recovery, readiness, activity, and so much more, helping me become more in tune with what my body needs. I was a little hesitant about the price and the monthly subscription at first, but after using it, I can confidently say it’s worth the investment. The amount of information and features it provides makes it feel like a personal wellness tool right on my finger. I love that it helps me notice trends, make better decisions for my health, and understand when I may need to slow down or prioritize rest. If you’re someone who wants to be more connected with your body and your overall wellness, the Oura Ring 4 is definitely worth considering. This has become an essential part of my daily routine, and I couldn’t recommend it more!
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Reviewed in the United States on July 15, 2026 by Brianna w
Style: Metallic
Color: Silver
Size: 13
I purchased a rind 1.5 years ago and have used it every day since. Here is what I love about it: 1) Great insight into your basic health metrics and the app is easy to understand and provides helpful reporting. 2) looks great and is much more comfortable to sleep with than a watch. 3) allows me to wear an analog watch and still track movement and steps, as well as all health functions. 4) great battery life for the fist year, 5) great build quality. I train with weights daily and regularly hike, backpack and even took it for a 3 week through hike of the VT Long Trail with no issues or damage to the ring. Neutral: 1) size is a bit much and can feel a bit big on my finger, I don't wear jewelry so that could be why, 2) I have to take it off to do pull-ups, deadlifts or anything where the ring compresses against the bar. Not just because the ring could get damaged but also because the pressure digs the ring into my finger and it can be painful or get in the way of my grip. 3) charging is a bit slow 4) fitness tracking even with my iphone connected for tracking my location and movement is fairly poor compared to my garmin GPS watch. This is probably to be expected but for those of you thinking about using this as your sole fitness tracking system I would think twice. Milage is consistently off (lower) then using my Garmin Enduro. Negatives: 1) Biggest issue: The battery life slowly dies. When I first got the ring I could go 5-6 days between charges, now at 1.5 years I'm charging it every other day. At $400 for the ring I would expect better battery longevity. 2) I didn't find much use for Symptom Radar. It tended to make me paranoid rather than providing useful data. Not once when it provided an alert did I get sick and it gave me a ton of false positives like when I came home after an overnight flight, had a few too many drinks, ate too much before bed, etc. I eventually turned it off and haven't missed it at all. Overall I still love my Oura ring and it would amazingly with my iPhone. After a year and a half of daily use (it only comes off to charge) the ring still looks great.
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Reviewed in the United States on May 20, 2026 by Peter
Style: Metallic
Color: Brushed Silver
Size: 12
Comestically, I like the brushed silver - it is stunning. I've had the black, black matte and the gold. I like the brushed silver by far - not as shiny as the regular silver, and the texture is classy, more masculine. Functionally, Oura it does as advertised and allows me to take my other devices off to track sleep, you don't even notice it's on your finger. The app provides a ton of information daily as well as seasonal and annual reports so you can see how you are tracking. Only pitfall is it may pick up washing dishes, taking a shower or vacuuming as an activity due to the consistent motion. You can delete if desired. Battery life is about 4-5 days with no charge. I choose to recharge when I'm in shower as I don't need metrics for that, so I never run out of battery. Worth the investment.
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Reviewed in the United States on May 4, 2026 by CD
Style: Metallic
Color: Stealth
Size: 11
I’ve owned mine for just over a year and wanted to wait before posting a review. I wasn’t in the market to buy a device like this, but I had some FSA money I needed to spend. Now, I don’t want to go a day without it! I used to prefer only using Fitbit, but this is much more convenient and accurate. The cons: a little bulky as far as a ring is concerned, so it has caused me to form a callous on the finger where I wear it most frequently. On top of the up front cost being significantly higher than my Fitbits, there’s a monthly subscription fee for the app and the ring is useless without it (no screen on the ring means the only way to see the info is via the app). Pros: much more convenient, comfortable, helpful, and insightful than my Fitbits. I have to charge it maybe once a week for an hour or two. There’s no screen to break or clock faces to purchase. No complicated or useless extra features, apps, or poorly routed Bluetooth phone calls. The data measured is presented by the app in a useful and insightful way. Example: when it measured an increase in my basal body temp, it combined that with other info to inform me that my cycle was about to start. Example: It gives a readiness score which tells me how much energy I should plan on having that day and suggestions for increasing my score. While it’s not a continuous or on demand monitor for things like temp and blood oxygen, it does measure and track them which is not something my Fitbit could even do. It is also pretty accurate at detecting when I fall asleep and when I wake up (even if it’s for a snack at 2am), and how well I slept. Best part- I forget I’m wearing it most of the time. The ring just stays on my finger- even when I shower or swim or cook or clean so there’s very little interruption to the info it’s gathering.
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Reviewed in the United States on June 28, 2026 by kirstenL