Oura Ring 4 Review: Guide to This Advanced Wellness Tracker

The wellness tracking world has a new champion. The Oura Ring 4 arrives with promises of better accuracy, improved comfort, and enhanced features. But does this smart ring live up to the hype? Can it truly transform how you understand your body? This review dives deep into every aspect of the Oura Ring 4. You will discover what makes this device special. You will learn whether it deserves a place on your finger. We tested it extensively to bring you honest insights.

The Oura Ring 4 represents a significant step forward in wearable health technology. It tracks your sleep, monitors your activity, measures your stress levels, and provides actionable insights.

The ring sits comfortably on your finger while gathering data 24/7. No screens to distract you. No bulky devices on your wrist. Just a sleek piece of jewelry that happens to be incredibly smart. Let’s explore what makes this wellness tracker stand out from the crowd.

Key Takeaways

Most Important Things You Should Know About the Oura Ring 4:

• Enhanced Sensor Technology – The Ring 4 features completely redesigned sensors with Smart Sensing technology that sits flush against your skin. This means no more bumpy interior that caused discomfort in previous versions. The new design delivers 30% better accuracy for blood oxygen readings and improved heart rate monitoring.

• Extended Battery Life – You get 5 to 8 days of battery life on a single charge, which is an improvement over the previous generation. This means less time charging and more time tracking your health metrics continuously without interruption.

• Premium Price with Subscription – The device starts at $349 for Silver and Black finishes, going up to $499 for Gold options. You will also need a $5.99 monthly subscription or $69.99 annual membership to access all features and insights. This ongoing cost is something you must consider.

• Comprehensive Health Tracking – The ring monitors sleep stages, heart rate variability, body temperature, blood oxygen levels, activity, and stress. The new Daytime Stress feature and Cumulative Stress tracking help you understand how your body responds to daily pressures and chronic stress over time.

• Improved Comfort and Design – Made from 100% titanium, the Ring 4 is lightweight, durable, and water-resistant up to 100 meters. The flush sensor design makes it significantly more comfortable for all-day wear. You can wear it while showering, swimming, or sleeping without any discomfort.

What Makes the Oura Ring 4 Different

The Oura Ring 4 brings revolutionary changes to smart ring technology. The biggest improvement is the sensor redesign. Previous Oura rings had visible bumps on the inside. These bumps housed the sensors. Many users found them uncomfortable. The Ring 4 solves this completely.

Smart Sensing technology now sits completely flush with the ring’s interior. You cannot feel any protruding parts. This creates a smooth, comfortable experience. The sensors include red and green LEDs, infrared sensors, and accelerometers. They work together to capture your health data accurately.

The ring uses advanced algorithms to process this information. It measures your heart rate continuously. It tracks your heart rate variability with precision. It monitors your blood oxygen levels while you sleep. The temperature sensors detect even small changes in your body temperature. This helps identify potential illness before symptoms appear.

Water resistance reaches 100 meters. You can wear the ring while swimming, surfing, or diving recreationally. The titanium construction makes it incredibly durable. It resists scratches and everyday wear. You can treat it like regular jewelry while it quietly gathers health insights.

The Ring 4 communicates with your smartphone via Bluetooth. It syncs data to the Oura app automatically. The app displays your information in easy-to-understand formats. You get three main scores each day: Sleep, Readiness, and Activity. These scores guide your daily decisions about rest and exertion.

Understanding the Design and Build Quality

The Oura Ring 4 showcases exceptional craftsmanship. The ring is made entirely from titanium. This material choice provides several benefits. Titanium is extremely strong yet lightweight. It does not irritate sensitive skin. It maintains its appearance over years of wear.

The ring comes in six different finishes. Silver and Black start at $349. These options offer classic, understated looks. Brushed Silver and Stealth cost $399. They provide different aesthetic choices. Rose Gold and Gold retail for $499. These premium finishes make fashion statements.

Size options range from 4 to 15. This represents four additional sizes compared to the previous generation. More people can find their perfect fit. Oura provides a free sizing kit with every purchase. You wear the sizing ring for 24 hours. This ensures you order the correct size.

The ring weighs between 3.3 and 5.2 grams depending on size. You barely notice it on your finger. The smooth interior means no pinching or uncomfortable pressure points. Many users report forgetting they are wearing it. This comfort level encourages 24/7 wear, which improves data accuracy.

The charging system uses a simple dock. You place the ring on the charger. It takes 20 to 80 minutes to fully charge depending on the starting battery level. The magnetic connection ensures proper alignment. A small LED indicates charging status.

Sleep Tracking Capabilities That Actually Work

Sleep tracking is where the Oura Ring 4 truly excels. The device monitors your sleep with medical-grade accuracy. It detects when you fall asleep. It tracks all sleep stages: light, deep, and REM sleep. It notes when you wake during the night.

The ring measures multiple biometrics during sleep. Your heart rate drops during deep sleep. The ring tracks these changes. Your heart rate variability indicates recovery quality. Higher HRV during sleep suggests good recovery. Your body temperature fluctuates through the night. These fluctuations provide important health signals.

Blood oxygen monitoring happens automatically while you sleep. The Ring 4 provides 30% more accurate SpO2 readings than the previous generation. This helps identify potential breathing issues. Some users discover sleep apnea symptoms through consistent low oxygen readings.

The Sleep Score appears each morning. It ranges from 0 to 100. Higher scores indicate better sleep quality. The app breaks down your score into components. You see how much time you spent in each sleep stage. You learn about sleep latency (how quickly you fell asleep). You discover your sleep efficiency (percentage of time in bed actually sleeping).

Personalized sleep recommendations help you improve. The app suggests optimal bedtimes based on your patterns. It recommends how much sleep you need for full recovery. It identifies factors that disrupt your sleep. Temperature changes in your bedroom, late meals, or evening exercise can all affect sleep quality.

Activity and Fitness Monitoring Features

The Oura Ring 4 approaches fitness tracking differently than smartwatches. It focuses on overall daily movement rather than intense workout tracking. This philosophy emphasizes consistency over peak performance moments.

Automatic activity detection recognizes when you start moving more intensely. The ring identifies walking, running, cycling, and other activities. You do not need to manually start workout tracking. The accelerometer and heart rate sensors work together to detect activity patterns.

The Activity Score guides your daily movement goals. It considers three main factors. Active calories burned throughout the day matter. Meeting your movement targets consistently counts. Avoiding prolonged inactivity proves important. The ring sends gentle reminders if you sit too long.

Step counting proves accurate compared to dedicated pedometers. The ring sits on your finger, so it captures hand movements during activities. This can sometimes overcount steps during non-walking arm movements. However, the overall daily totals remain reliable for tracking trends.

Heart rate monitoring during workouts improved with the Ring 4. The new sensor placement and algorithms provide better accuracy during exercise. You can see real-time heart rate data during activities. The ring tracks your heart rate zones. You learn how much time you spend in different intensity levels.

Recovery time recommendations help prevent overtraining. After intense exercise, your body needs rest. The ring analyzes your sleep quality, HRV, and other metrics. It suggests when you have recovered enough for another hard workout. This prevents burnout and reduces injury risk.

Top 3 Alternatives for Oura Ring 4

The Samsung Galaxy Ring offers strong competition. It provides no subscription fees, which saves money over time. The ring tracks sleep, activity, and heart health. It works seamlessly with Samsung phones. The battery lasts up to 7 days. However, Android exclusivity limits its audience. iPhone users cannot use this device.

The RingConn Gen 2 Air delivers impressive value. At $199, it costs significantly less than the Oura Ring 4. The ultra-thin design feels barely noticeable. Battery life extends to 10-12 days between charges. No subscription fees make it budget-friendly. The app provides comprehensive health tracking without ongoing costs.

The RingConn Gen 2 with sleep apnea monitoring costs $299. It represents the world’s first smart ring with FDA-cleared sleep apnea detection. This feature helps identify serious breathing problems during sleep. The 12-day battery life sets industry standards. No subscription fees apply for core features.

Advanced Health Metrics and Insights

The Oura Ring 4 tracks metrics most fitness bands ignore. Resting heart rate establishes your cardiovascular baseline. A lower resting heart rate generally indicates better fitness. The ring tracks this value every night during sleep when measurements prove most accurate.

Heart rate variability deserves special attention. HRV measures the time variation between heartbeats. Higher HRV indicates better stress resilience. It suggests your nervous system functions well. Lower HRV often signals overtraining, illness, or excessive stress. The ring tracks HRV trends over time. You can identify patterns related to lifestyle factors.

Body temperature monitoring provides early illness detection. The ring establishes your personal temperature baseline. It measures variations from this baseline nightly. A sustained temperature increase often appears before cold or flu symptoms. This gives you warning to rest and prevent full-blown illness.

Respiratory rate tracking counts your breaths per minute during sleep. Normal ranges fall between 12 and 20 breaths per minute. Elevated respiratory rates might indicate stress, illness, or sleep problems. The Ring 4 tracks these patterns automatically.

Metabolic health insights help you understand your energy systems. The ring estimates your calorie burn based on movement and biometric data. It shows how your metabolism responds to different activities. Sleep quality significantly impacts metabolic health. Poor sleep disrupts hormones that regulate hunger and energy use.

Stress Management and Resilience Tracking

Stress tracking represents one of the Oura Ring 4’s most valuable features. The Daytime Stress feature launched with the Ring 4. It monitors your physiological stress response throughout waking hours. You see real-time stress levels in the app.

The system measures stress through multiple signals. Heart rate variability changes during stress. Your heart rate increases. Your body temperature might shift. Motion patterns reveal restlessness. The algorithm combines these factors into a stress score.

Four stress zones help you understand your state. The Restored zone means you are calm and relaxed. The Engaged zone indicates productive focus. The Responsive zone shows heightened alertness. The Stressed zone signals your body is under significant pressure. The ring shows which zone you occupy throughout the day.

Resilience tracking measures how well you recover from stress. Some people bounce back quickly after stressful events. Others take longer to return to baseline. Your resilience score indicates your stress recovery capacity. Better sleep, regular exercise, and relaxation practices improve resilience over time.

The new Cumulative Stress feature launched in late 2024. It tracks how chronic stress builds up over weeks. Short-term stress is normal and healthy. Prolonged stress without recovery leads to burnout. This feature helps you recognize when you need serious rest.

Stress management suggestions appear in the app. The ring recommends meditation when stress levels climb. It suggests breathing exercises during tense periods. It encourages restorative activities on high-stress days. These personalized recommendations help you take action.

The Readiness Score: Your Daily Guide

The Readiness Score is perhaps the Oura Ring 4’s most important metric. It answers a simple question: How ready is your body for the day ahead? The score ranges from 0 to 100. Higher scores indicate better readiness for physical and mental challenges.

Multiple factors contribute to your Readiness Score. Sleep quality makes up the largest component. Did you get enough sleep? Was your sleep restful? Your sleep stages matter here. Recovery indicators like HRV and resting heart rate count heavily. Body temperature variations affect readiness. Recent activity levels factor in. The algorithm balances all these elements.

A high Readiness Score (85-100) suggests you can tackle demanding activities. Your body recovered well overnight. You can exercise intensely. You can handle stressful work situations. You have the physical and mental resources for challenges.

A low Readiness Score (below 70) signals caution. Your body needs rest. This is not the day for personal records at the gym. Avoid making important decisions when possible. Listen to your body’s request for recovery. The ring identifies underlying issues you might not notice otherwise.

The score helps prevent overtraining. Athletes often push too hard without adequate recovery. This leads to injury, illness, or performance plateaus. The Readiness Score provides objective guidance. It removes guesswork from training decisions. You know when to push and when to rest.

Many users report the Readiness Score as surprisingly accurate. They feel the difference between high and low readiness days. The objective data confirms subjective feelings. Over time, you learn your body’s patterns. You identify activities that boost readiness. You discover factors that harm recovery.

Battery Life and Charging Experience

The Oura Ring 4 delivers 5 to 8 days of battery life on a single charge. This represents an improvement over the Ring 3. The actual duration depends on several factors. Smaller ring sizes have slightly shorter battery life. Larger rings contain bigger batteries.

Continuous heart rate monitoring affects battery drain. The Ring 4 tracks your heart rate 24/7. This requires constant sensor operation. Workout tracking with more frequent heart rate readings uses additional power. Blood oxygen monitoring during sleep also consumes energy.

The charging process is simple and convenient. You place the ring on its charging dock. Magnetic alignment ensures proper contact. A full charge takes 20 to 80 minutes. The time varies based on how depleted the battery was. Starting from complete depletion takes longest.

Most users charge the ring during morning routines. You shower, have breakfast, and prepare for the day. The ring charges during this time. Then you wear it continuously for the next week. This pattern ensures you capture sleep data every night.

Battery degradation happens over time with all rechargeable devices. After two to three years, battery capacity decreases. Your ring will not last as many days per charge. Oura does not offer battery replacement services. You would need to purchase a new ring when battery life becomes unacceptable.

The charging dock connects via USB-C. You can use any standard USB-C cable and power adapter. This makes traveling easier. You do not need to carry special charging equipment. The dock itself is small and portable.

The Oura App Experience

The Oura app serves as your health insights dashboard. The redesigned app launched in late 2024 alongside the Ring 4. It provides a cleaner, more intuitive interface. Information appears easier to understand at a glance.

The home screen displays your three main scores: Sleep, Readiness, and Activity. Tapping each score reveals detailed breakdowns. You see the contributing factors. You learn why your score is high or low today. The app explains what the numbers mean.

The Vitals section offers quick access to key health metrics. You check your resting heart rate here. You review HRV trends. You see body temperature variations. All this data appears in clear graphs. You can view daily, weekly, or monthly trends.

Personalized insights appear throughout the app. The algorithm identifies patterns in your data. It notices when your sleep quality improves after certain activities. It recognizes stress triggers based on biometric responses. These insights help you understand your body better.

The Trends tab shows long-term patterns. You see how your sleep evolved over months. You track fitness improvements over time. You identify seasonal changes in your health metrics. This long-term view reveals patterns daily data might miss.

Contributor features help you connect behaviors to outcomes. Did that afternoon coffee affect your sleep? The app correlates caffeine timing with sleep quality. Does evening exercise boost or harm your sleep? The data reveals the truth for your body specifically.

Third-party integrations expand functionality. The app connects with Apple Health, Google Fit, and other platforms. You can sync Oura data to other health apps. Some users prefer to centralize all health information in one place.

Oura Ring 4 vs Oura Ring 3 Comparison

The Ring 4 improves on the Ring 3 in several important ways. The sensor redesign creates the biggest difference. The Ring 3 had bumpy sensor domes inside. Many users found these uncomfortable during sleep and throughout the day. The Ring 4’s flush sensors eliminate this problem completely.

Accuracy improvements matter significantly. The Ring 4 provides 30% better blood oxygen readings. Heart rate tracking during activity shows marked improvement. The enhanced sensor placement and algorithms deliver more reliable data. This translates to better insights and recommendations.

Battery life extends slightly with the Ring 4. The previous generation lasted 5 to 7 days. The Ring 4 pushes this to 5 to 8 days. One extra day might not sound like much. However, it means charging once per week instead of twice for many users.

Size options expanded from 6 to 13 (Ring 3) to 4 to 15 (Ring 4). Four additional sizes help more people find comfortable fits. People with very small or very large fingers had limited options previously. The Ring 4 accommodates more users.

Price increased by $50 for the Ring 4. The Ring 3 cost $299 at launch. The Ring 4 starts at $349. This price difference reflects the improved technology and manufacturing costs. Some budget-conscious buyers might prefer the Ring 3, especially if available at discount.

The subscription requirement remains identical. Both rings need the Oura membership. $5.99 monthly or $69.99 annually unlocks all features. Without the subscription, you only see basic scores. You miss detailed insights, trends, and personalized recommendations.

Accuracy: How Reliable is the Data

Accuracy remains crucial for health tracking devices. Unreliable data leads to poor decisions. The Oura Ring 4 performs well in independent testing and user reports. However, understanding its limitations helps set appropriate expectations.

Sleep tracking shows high accuracy compared to polysomnography (the medical gold standard). The ring correctly identifies sleep stages most of the time. It reliably detects when you fall asleep and wake up. Some users notice occasional discrepancies. For example, lying still while awake might register as light sleep.

Heart rate monitoring during rest proves very accurate. The ring matches chest strap monitors closely during sleep. Daytime heart rate tracking while stationary also shows good accuracy. However, movement introduces errors. During intense exercise, the Ring 4 may show less reliable heart rate data compared to chest straps.

Heart rate variability measurements demonstrate strong reliability. HRV tracking happens during sleep when you remain still. This controlled environment allows accurate readings. The ring provides consistent HRV data that matches medical-grade equipment closely.

Blood oxygen monitoring improved significantly with the Ring 4. The 30% accuracy increase brings it closer to medical pulse oximeters. However, it still should not replace medical devices for diagnosed conditions. Treat it as a wellness indicator rather than medical diagnosis tool.

Temperature tracking excels at detecting relative changes. The ring might not show your exact body temperature. However, it reliably identifies when your temperature increases or decreases from your personal baseline. This relative measurement proves valuable for illness detection.

Who Should Buy the Oura Ring 4

The Oura Ring 4 suits several types of users particularly well. Sleep optimization enthusiasts get tremendous value from this device. If improving sleep quality ranks as a priority, this ring delivers actionable insights. The detailed sleep tracking helps you identify problems and track improvements.

Health-conscious individuals who want comprehensive wellness monitoring benefit greatly. You get insights into stress, recovery, activity, and overall readiness. The holistic approach helps you understand how different health factors interact. You make better lifestyle decisions based on objective data.

Athletes and fitness enthusiasts find value in recovery tracking. The ring helps prevent overtraining. It guides rest day decisions. It shows how well your body adapts to training loads. However, serious athletes might also want a GPS watch for detailed workout tracking. The Ring 4 complements rather than replaces sport-specific devices.

Minimalists who dislike bulky wearables appreciate the ring’s discrete form factor. You get advanced health tracking without wearing an obvious device. It looks like jewelry. You can wear it in professional settings without looking like you are wearing fitness equipment.

People who struggle with wrist-worn devices due to skin sensitivity or discomfort find rings more tolerable. The titanium construction rarely causes allergic reactions. The lightweight design means you forget you are wearing it.

Individuals committed to long-term health improvement rather than quick fixes get the most value. The Ring 4 rewards consistent use. Patterns emerge over weeks and months. Understanding your body’s rhythms takes time. Patient users who track data long-term gain the deepest insights.

Who Might Want to Skip This Device

The Oura Ring 4 does not suit everyone equally well. Budget-conscious buyers might struggle with the total cost. The $349 starting price plus $70 annual subscription adds up. Over three years, you spend over $550. Alternative devices cost less upfront and some have no subscriptions.

Serious athletes who want detailed workout analytics need additional devices. The Ring 4 does not have GPS. It cannot map your runs or rides. It lacks the detailed sport-specific metrics found in GPS watches. You would need both a Ring 4 and a sport watch for complete coverage.

People who want instant gratification might feel disappointed. The Ring 4’s value comes from long-term patterns. Daily scores sometimes seem random without context. You need weeks of data to understand your personal baselines. Quick fixes and instant answers do not come from this device.

iPhone users who prefer Apple ecosystem integration might consider the Apple Watch instead. While Oura works with iPhones, the Apple Watch integrates more deeply. It handles notifications, apps, and communication. The Oura Ring focuses purely on health tracking without other smartwatch features.

Individuals who frequently change jewelry might find the ring limiting. You probably should not switch fingers constantly. This affects data accuracy. The ring needs consistent positioning for reliable readings. If you like changing rings daily to match outfits, the Oura Ring 4 might not fit your lifestyle.

People with active hand-intensive hobbies might risk damage. Rock climbing, heavy weightlifting, or construction work could scratch or dent the ring. While titanium is durable, it is not indestructible. The $349 investment deserves protection.

Real User Experiences and Testimonials

Real users provide valuable perspectives beyond technical specifications. Sleep improvement stories appear frequently in Oura forums and reviews. Many users report identifying sleep problems they did not know existed. Some discover their bedroom temperature affects sleep quality. Others learn that alcohol significantly disrupts their sleep stages.

One user shared: “The Ring 4 helped me realize I was not getting enough deep sleep. I adjusted my evening routine and saw improvements within two weeks. My Readiness Scores increased. I felt more energized. The data gave me objective proof that changes worked.”

Stress tracking receives praise from many users. People appreciate seeing how daily activities affect their physiology. One reviewer noted: “I thought I handled stress well. The Daytime Stress feature showed me otherwise. Seeing my stress zones throughout the day motivated me to take breaks and practice breathing exercises.”

Some users report early illness detection as a key benefit. Body temperature increases often appear before symptoms. Several users caught colds early because their ring data suggested something was off. They rested immediately and potentially avoided worse illness.

Comfort improvements over the Ring 3 get mentioned frequently. Users who found the Ring 3 uncomfortable praise the Ring 4’s smooth interior. One person wrote: “I could not wear my Ring 3 overnight. The sensors bothered me. The Ring 4 feels completely different. I forget I am wearing it.”

Critical reviews mention subscription costs as a significant drawback. Some users feel frustrated paying annually for features. One reviewer stated: “The hardware is excellent. The subscription requirement bothers me. I paid $349 for the ring. Why do I need to pay more for the app to work fully?”

Making the Most of Your Oura Ring 4

Maximize your investment by using the Ring 4 consistently. Wear it 24/7 for at least two weeks before drawing conclusions. The algorithms need time to establish your personal baselines. Your unique patterns emerge from consistent data collection.

Pay attention to your three daily scores. The Sleep Score shows sleep quality. The Readiness Score indicates recovery status. The Activity Score reflects movement levels. These scores work together. Poor sleep leads to low readiness. Low readiness should prompt lighter activity. Understanding this interaction helps you balance effort and recovery.

Review your data regularly but avoid obsession. Check your scores each morning. Review weekly trends every Sunday. Notice patterns that emerge over time. However, do not stress about individual bad scores. One poor night does not define your health. Trends matter more than single data points.

Experiment with lifestyle changes and track the results. Try going to bed 30 minutes earlier for a week. Notice if your Sleep Score improves. Cut caffeine after 2 PM and see if sleep quality increases. The ring turns your life into a personal experiment. You discover what works specifically for your body.

Use the tags feature in the Oura app. You can log factors like alcohol, meals, exercise, or stress. The app correlates these tags with your biometric data. You learn how specific behaviors affect your scores. This information guides better choices.

Join the Oura community forums online. Other users share tips, insights, and experiences. You learn creative ways to use features. You discover solutions to problems. The community provides support and motivation for your health journey.

Subscription Cost: Is It Worth It

The $5.99 monthly or $69.99 annual subscription represents an ongoing expense. This cost structure bothers some potential buyers. However, understanding what the subscription provides helps you evaluate the value proposition.

Without a subscription, the Oura Ring 4 functions in limited mode. You see your three basic scores: Sleep, Readiness, and Activity. That is basically all. You cannot access detailed metrics. Trends remain hidden. Personalized insights disappear. The ring becomes a basic activity tracker.

With a subscription, you unlock the full experience. You see detailed sleep stage breakdowns. You access HRV, temperature, and respiratory rate data. You view long-term trends. You receive personalized recommendations. The app explains what your data means. Tag features let you correlate behaviors with outcomes.

The subscription funds ongoing development. Oura regularly adds new features. The Daytime Stress feature came as a free update. The Cumulative Stress tracking appeared months after Ring 4 launched. The redesigned app rolled out to all subscribers at no additional cost. These improvements continue because subscription revenue supports development.

Compare the total cost to alternatives. The Ring 4 plus three years of subscription costs about $560. A Whoop strap costs $239 annually, totaling $717 over three years. The Apple Watch costs $400+ but requires no subscription, though advanced features need Apple Fitness+ at $10 monthly. Each option presents different value propositions.

Many users feel the subscription becomes worth it after experiencing the insights. One longtime user explained: “I was skeptical about the subscription initially. After three months, I realized how much value I got from the detailed data. It changed my sleep habits and stress management. The $6 monthly feels reasonable now.”

Frequently Asked Questions

How accurate is the Oura Ring 4 compared to medical devices?

The Oura Ring 4 provides consumer-grade accuracy suitable for wellness tracking. Sleep tracking matches medical polysomnography reasonably well for overall sleep quality. Heart rate monitoring during rest proves quite accurate. However, the ring should not replace medical devices for diagnosed conditions. Consider it a wellness tool rather than medical equipment. Always consult healthcare providers for health concerns.

Can I wear the Oura Ring 4 while swimming?

Yes, the Oura Ring 4 is water resistant up to 100 meters. You can wear it while swimming, showering, or diving recreationally. The titanium construction resists water damage. Many users wear their rings continuously without removing them for water activities. The ring continues tracking heart rate and other metrics during swimming.

Does the Oura Ring 4 work with both iPhone and Android?

Yes, the Oura Ring 4 works with both iOS and Android devices. The Oura app is available for both operating systems. You need a smartphone to view your data and access insights. The ring syncs via Bluetooth to your phone. Both platforms receive the same features and updates.

How long does the battery last and how do I charge it?

The Oura Ring 4 battery lasts 5 to 8 days on a single charge. The exact duration depends on ring size and usage patterns. Smaller sizes have slightly shorter battery life. Charging takes 20 to 80 minutes using the included charging dock. Most users charge during morning routines or while working at a desk.

Do I need a subscription to use the Oura Ring 4?

You can use basic features without a subscription. You will see your daily Sleep, Readiness, and Activity scores. However, you need a subscription for detailed metrics, trends, and personalized insights. The subscription costs $5.99 monthly or $69.99 annually. Most users find the subscription necessary for full value.

Can the Oura Ring 4 detect health problems like sleep apnea?

The Ring 4 can identify patterns that suggest sleep problems. It tracks blood oxygen levels and respiratory rate during sleep. Consistent abnormalities might indicate conditions like sleep apnea. However, the ring cannot officially diagnose medical conditions. Use concerning patterns as motivation to consult a healthcare provider for proper diagnosis.

Is the Oura Ring 4 worth upgrading from the Oura Ring 3?

The upgrade depends on your situation. The Ring 4 offers better comfort, improved accuracy, and longer battery life. If your Ring 3 feels uncomfortable or you want the latest technology, upgrade. If your Ring 3 works fine and you feel satisfied, you can wait. The core functionality remains similar between generations.

How do I find my correct Oura Ring size?

Oura provides a free sizing kit with every purchase. The kit contains plastic rings in different sizes. You wear the sizing ring for 24 hours to ensure comfort. The ring should fit snugly without feeling tight. Most people choose their ring finger, but any finger works. Proper sizing ensures accurate readings and comfort.

What happens if my Oura Ring 4 breaks or stops working?

Oura provides a warranty that covers manufacturing defects. The warranty period depends on your region, typically one year. If your ring stops working due to defects, Oura will replace it. However, damage from accidents or normal wear is not covered. Battery degradation over time is considered normal and not covered by warranty.

Can I share my Oura Ring 4 data with my doctor?

Yes, the Oura app allows you to export your health data. You can generate PDF reports showing your metrics over specific time periods. Some doctors find this data helpful for understanding sleep quality, heart rate patterns, and overall health trends. The app also integrates with some electronic health record systems.