Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 13 - Silver
Shipping
Specifications
Operating System CompatibilityApple iOS, AndroidBuilt-in Storage0 gigabytesMetrics MeasuredActivity vs. inactivity, Blood oxygen, Hours slept, Calories burned, Resting heart rateProtective QualitiesWater resistant, Dust resistantMaximum Depth of Water Resistance328 feet
Key Specs
Operating System CompatibilityApple iOS, AndroidBuilt-in Storage0 gigabytesMetrics MeasuredActivity vs. inactivity, Blood oxygen, Hours slept, Calories burned, Resting heart rateProtective QualitiesWater resistant, Dust resistantMaximum Depth of Water Resistance328 feet
General
Product NameOura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 13BrandOuraProduct TypeActivity trackerForm FactorRingModel FamilyOura Ring 4Model NumberJZ90-54217-13Year of Release2024ColorSilverColor CategorySilver
Design
Ring Size13Ring Size SystemUS
Display
Display ScreenNo
Compatibility
Operating System CompatibilityApple iOS, Android
Connectivity
Internal CarrierNot ApplicableWireless ConnectivityBluetooth
Features
Built-in Storage0 gigabytesGPS EnabledNo
Activity
Metrics MeasuredActivity vs. inactivity, Blood oxygen, Hours slept, Calories burned, Resting heart rate
Performance
Protective QualitiesWater resistant, Dust resistantMaximum Depth of Water Resistance328 feet
Power
RechargeableYesCharging Interface(s)Other
Warranty
Manufacturer's Warranty - PartsNot providedManufacturer's Warranty - LaborNot provided
Other
UPC6430060153455
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 Membership
First month of membership is on us with your purchase, $5.99/mo afterwards. Offer available to new members only. Take advantage of the annual prepaid option for $69.99. Membership is tied to your account accessible via the Oura App, not your physical ring.
Size Before You Buy
Order an Oura Ring 4 Sizing Kit, or visit a Best Buy store, to find your optimal size, then return to BestBuy.com to buy your Oura Ring 4.
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 your unique finger and activity — delivering accurate, continuous data, day and night.
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 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.
Sleep
Get the best sleep of your life, and then some. Wake up to in-depth sleep analysis, so you can improve your habits and transform how you feel. Oura provides insights into your sleep staging throughout the night, blood oxygen levels, HRV and nighttime heart rate.
Readiness
Know when to push it and when to take it easy with the Oura Readiness Score. It takes into consideration over 30 different body signals — including temperature, heart rate, HRV, and sleep — to tell you how ready you are for the day ahead.
Activity
Whether you're running a marathon or running errands, Oura tracks your daily activity, steps, calories burned and workouts while helping you strike a balance between movement and recovery.
Heart Health
From monitoring your daily heart rate and HRV to discovering your Cardiovascular Age and Cardio Capacity, Oura helps you take care of one of the key indicators of your overall health — your heart.
Women's Health
Your cycle impacts your mood, sleep, activity and more, every day. Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your holistic health. Track the changes in your body throughout your cycle and predict your period up to 30 days in advance.
Stress
Oura will help you identify signs of stress and understand how well your body handles it. You'll know when you need to incorporate more self-care practices and how to recover from long term stressors.
Stress Resilience
Stress Resilience visualizes how well your body withstands stress over time and helps you build resilience to get through life’s challenges. A healthy amount of stress, sleep, and recovery keeps you prepared for whatever comes your way.
HSA/FSA Compatibility
You may be eligible for reimbursement on your Oura Ring purchase. You can submit your Best Buy confirmation email to your FSA or HSA provider as proof of purchase.
App Compatibility
Automatically sync your health and workout data from your favorite apps through Apple Health, Google Fit, Health Connect, Strava, and Natural Cycles.
iPhone and Apple Watch Compatibility
Get your Oura data at a glance from your iPhone or Apple Watch with iOS widgets and Apple Watch complications. You can also access a companion version of the Oura App on your Apple Watch.
Android Compatibility
The award-winning Oura App is compatible on Android devices running Android 8.0 and higher with Google Play services. The device must also support Bluetooth 4.0.
Language Availability
iOS and Android apps available in English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Danish, and Swedish. Supports metric and imperial units of measurement.
Search
Q: QuestionDoes the black get scuffed or scratched easily?(1 answer)
A: AnswerI have the 3 in black have not had it a year and it is all scratched up. It looks horrible. I hope the 4 is made betterAnswered by Anonymous
Q: QuestionWhat finger do you need to wear the ring on.(2 answers)
A: AnswerThe website says that it can be worn on any finger but for the most accurate data, wear it on your pointer, middle, or ring finger of either hand.Answered by Sara
- A: AnswerYou get the membership for the first month for free just for buying the ring. If you choose not to renew you only are able to access sleep, readiness, and activity scores. You won’t get access to the symptom radar, stress insights or other features. I’m not even sure if without the membership if you can access the details of your sleep or it’s just a score. Hope this helps!
Answered by user139953
- A: AnswerI read one review - can't remember where now, maybe thewirecutter.com - that said it hurt the reviewer's hand to wear while lifting, but was recommended otherwise. Regarding scratch protection, there are a ton of silicon covers available from third parties.
Answered by RMoyster575
Q: Questionwhat is the difference in Ora Ring 3 vs 4?(1 answer)
A: AnswerLonger battery life, a bit thinner and more comfortable. I find it harder to keep in the correct orientation without the sensors on the inside.Answered by Anonymous
Q: QuestionDoes the ring include a charger for it?(1 answer)
A: AnswerYes, a charging base, a USB-C cable but no power supply.Answered by Anonymous
Asked by Dan
- A: AnswerHi yes i agree they all should be the same price the ring is very expensive as is .George
Answered by GeorgeL
Reviews
Rating 4.6 out of 5 stars with 387 reviews
4.6Rating by feature
- 4.7Battery Life
Rating 4.7 out of 5 stars
- 4.6Durability
Rating 4.6 out of 5 stars
- 4.7Comfort
Rating 4.7 out of 5 stars
9 expert reviews
Customers are saying
Customers recognize the Oura Ring 4 for its accurate sleep tracking, comfortable design, and long battery life. They appreciate the insights and data provided by the accompanying app but express concerns about the subscription fee and the ring's susceptibility to scratches.
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.
Rated 5 out of 5 stars
Oura Ring 4
I absolutely love my Oura Ring 4 in gold! It’s a perfect blend of cutting-edge technology and elegant design. The gold finish is stunning and elevates it beyond just a health tracker—it feels like a luxury accessory that seamlessly integrates into my everyday style. The insights it provides are truly life-changing. The sleep tracking is incredibly accurate, and the readiness score helps me make informed decisions about my activity levels each day. I also appreciate the period prediction feature—it’s discreet, accurate, and so useful for planning ahead. The battery life is fantastic, lasting nearly a week on a single charge, and the app is intuitive and easy to use. The real-time feedback on heart rate and stress levels has encouraged me to make small but impactful changes to my lifestyle. This ring is worth every penny—it’s not just a wearable, but a tool for holistic health and wellness. Highly recommend it to anyone looking for an advanced yet stylish health tracker!
This review is from Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 13 - Gold
Posted by ChristinaA
Rated 5 out of 5 stars
Happy I purchased this!
I’ve had the Oura ring in the color Stealth for a few weeks now and I’m enjoying the insight it provides on my health and well-being. I like the looks of this style and have to say it’s quite comfortable. It’s sturdy and have not had issues with scratches on the surface as of yet. The battery life is good, but with that being said, I do charge it every day while I shower. By the time I’m done, the ring is fully charged again. Every morning I look at my sleep tracking and readiness score and add my tags. I’m sure I will continue to enjoy this ring for a long time!
This review is from Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 11 - Stealth
Posted by CanVan
Rated 4 out of 5 stars
Great Ring! But Hidden Fees Required
My first month with the oura ring has been good thus far. An important thing to note is that they do not advertise that in order to access your ring’s data you will have to sign up with their monthly subscription. The data tracking insights are impressive and overall for me personally I think the investment is worth it for the stress and sleep tracking capabilities.
This review is from Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 6 - Gold
Posted by Destini