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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsOura Ring 4 is the upgrade to consider if you want its fully titanium construction, recessed sensors, broader size range, and newer Smart Sensing platform. If your Oura Ring Generation 3 (Gen3) fits well and provides the data you need, keeping it is reasonable: official battery estimates overlap, and the available research does not establish that Ring 4 is universally more accurate or lasts longer in real-world use.
This comparison separates Oura’s published specifications and estimates from unverified six-month experience. Both rings require Oura Membership for the full app experience, so include that recurring cost when comparing total ownership costs.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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OURA Ring 4 Smart Ring - Silver - Size 9 | $349.00 | Buy on Amazon |
| 2 |
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OURA Ring 4 Smart Ring - Stealth - Size 11 | $349.00 | Buy on Amazon |
| 3 |
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OURA Ring 4 Smart Ring - Silver - Size 8 | $349.00 | Buy on Amazon |
| 4 |
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10 Pack Ring Cover Compatible with Oura Ring Gen 4/4 Ceramic/Gen 3 | $6.99 | Buy on Amazon |
| 5 |
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OURA Ring 4 Smart Ring - Silver - Size 10 | $349.00 | Buy on Amazon |
Oura Ring 4 vs. Gen3: key differences
| Feature | Oura Ring 4 | Oura Ring Gen3 |
|---|---|---|
| Construction and sensors | Fully titanium inner and outer surfaces; recessed sensors, according to Oura. | Earlier-generation design. Do not assume Ring 4’s construction or sensor placement applies to Gen3. |
| Sensing platform | Oura describes Ring 4 as using Smart Sensing, with sensors for heart rate, HRV, overnight blood oxygen, temperature, and movement. | Oura’s earlier ring generation; this research does not establish a controlled, independent performance comparison. |
| Available sizes | Sizes 4–15, according to Oura. | Sizing differs by generation. Use the Gen3 sizing kit if buying Gen3. |
| Battery estimate for a new ring | Typically 5–8 days in Oura’s stated test conditions; actual battery life varies. | Up to seven days, according to Oura; this is not a guarantee for an older, used ring. |
| Membership | Full Oura app insights require Oura Membership. Oura lists US pricing at US$5.99 per month or US$69.99 per year before tax. | |
| Charging accessories | Requires Ring 4-compatible charging accessories. | Gen3 uses its generation’s charger; Oura documents Gen3 docks for Gen3 and Gen2. |
What changes with Ring 4?
Titanium construction and recessed sensors
Oura says Ring 4 has titanium inner and outer surfaces and recessed sensors. These are product specifications, not proof that every wearer will find the ring more comfortable or that it will resist scratches better. Oura notes that normal wear can scratch rings and suggests removing them during high-friction activities such as weightlifting.
Ring 4 is available in sizes 4–15. Oura says sizing differs slightly by generation, so use the correct generation’s sizing kit rather than assuming your Gen3 size will transfer. Oura recommends wearing the sizer for at least 24 hours, including during sleep, before choosing a size.
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- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- 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 — you’re free to forget it’s 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
Smart Sensing and app features
Oura describes Ring 4’s Smart Sensing platform as using red and infrared LEDs for overnight blood oxygen, green and infrared PPG sensors for heart rate and HRV, a temperature sensor, and an accelerometer. These are vendor-described capabilities; the available research does not establish an independent, controlled Ring 4-versus-Gen3 test proving better accuracy in everyday use.
Do not assume every newer app feature is exclusive to Ring 4. Oura’s Ring 4 announcement said several software updates, including Daytime Stress and Automatic Activity Detection updates, were made available to both Gen3 and Ring 4.
Oura says its ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions. Treat its readings as wellness trends and estimates, not medical diagnoses. Oura recommends looking at trends over time within its app rather than comparing results across different wearables.
Rank #2
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- 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 — you’re free to forget it’s 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
Battery life, charging, and age
Oura’s current estimate for a new Ring 4 is typically 5–8 days; its stated estimate for a new Gen3 is up to seven days. These are Oura estimates, not a guarantee of what an individual ring will deliver. Ring size, settings, activity, battery age, and use affect results, and rechargeable battery capacity declines over time.
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Oura’s Ring 4 estimate was based on new, unworn rings worn all day, with Automatic Activity Detection and Activity Heart Rate engaged for one hour daily, SpO2 disabled, and eight hours of sleep tracked nightly. Oura says leaving SpO2 active may shorten the estimate by up to two days, depending on sleep duration; more activity capture can also reduce battery life. The estimate used Ring 4 sizes 8–10.
If you own Gen3, judge the battery by its present performance, not the new-ring maximum. If charging interrupts your routine or you miss nights because the battery is depleted, that can weigh in favor of replacing an aging ring. The dossier does not establish a universal Ring 4 battery-life advantage in lived use.
Rank #3
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- 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 — you’re free to forget it’s 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
Chargers and travel
Chargers are generation-specific: Oura documents Ring 4 docks for Ring 4 and Gen3 docks for Gen3 and Gen2. Oura says its Ring 4 charging case fits Ring 4 models and holds up to five full charges. Check compatibility before buying a replacement charger or case.
Membership and total cost
Both generations use Oura Membership for full access to app insights and trends. Oura’s product page lists US membership at US$5.99 per month or US$69.99 per year before tax. Prices and terms differ by region, so confirm local pricing before purchase.
Compare total ownership cost, not just the ring price: include membership, compatible charging accessories, and any cost to trade up or replace an older ring. Ring 4 launch pricing from October 2024 is not a verified current price; check the live checkout price for your location.
Rank #4
- 【Compatibility】The silicone ring cover compatible with Oura Ring Gen 4/4 Ceramic, Oura Ring Gen 3 Horizon/Heritage. It is available in a variety of sizes. Please choose S for size 4/5/6/7, M for size 8/9/10/11, L for 12/13/14/15. (Note: Ring is NOT included)
- 【Charging Hole Design】Specially design for charging without removing the cover. The ring cover is designed with a charging hole for the ring dimple. Align the hole of the ring protector with the ring dimple. You can charge your ring without any hassle of taking ring cover on and off.
- 【Anti-scratch】The silicone ring protector fully encases the smart ring for optimal protection. It is essential for protecting your Oura ring from scratches, dents while working out, doing chores, lifting weights, sporting events and daily wear.
- 【Comfortable & Skin-Friendly】The Oura ring cover is made from premium soft and odorless high quality silicone. It is comfortable & skin-friendly, breathable & washable, durable & elastic. It won't cause allergies or discomfort to your fingers.
- 【Multi Color Choice】Package includes many ring protectors in different colors. You can change the ring cover for your smart ring every day according to your mood or outfit. It only takes a few seconds to give your smart ring a new look.
Who should upgrade to Ring 4?
Consider Ring 4 if you want its newer build and sizing options
Ring 4 is worth considering if you specifically want its titanium construction, recessed sensors, or sizes 4–15. If you are buying a ring for the first time, compare current availability, fit, purchase price, and membership cost before choosing a model.
Keep Gen3 if it fits and works for you
If your Gen3 is comfortable, its battery meets your needs, and you are satisfied with its app experience, there is no evidence here that you must upgrade for a universal accuracy or battery improvement. Ring 4’s official battery estimate overlaps with Gen3’s, and both generations use Oura Membership.
Size carefully before buying either generation
- Choose the sizing kit for the ring generation you plan to buy.
- Wear the sizer for at least 24 hours, including while sleeping, as Oura recommends.
- Confirm that the selected size is available and fits comfortably before ordering.
FAQ
Is Oura Ring 4 worth upgrading from Gen3?
It may be worth considering if you want Ring 4’s titanium construction, recessed sensors, broader size range, or newer sensing platform. If your Gen3 fits and works well, the available evidence does not show that every owner will benefit from upgrading.
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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Best Value
- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- 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 — you’re free to forget it’s 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
How long does Oura Ring 4 battery last?
Oura says a new Ring 4 typically lasts 5–8 days under its stated test conditions. Settings, activity, ring size, battery age, and use can change the result; enabling SpO2 may shorten the estimate.
Does Ring 4 use the same charger as Gen3?
No. Oura documents Ring 4 docks for Ring 4 and Gen3 docks for Gen3 and Gen2. Check charger compatibility before purchasing accessories.
Do Ring 4 and Gen3 use the same size?
Do not assume so. Oura says sizing differs slightly by generation and recommends using the appropriate generation’s sizing kit. Wear the sizer for at least 24 hours, including during sleep.
How much does Oura Membership cost?
Oura lists US membership at US$5.99 per month or US$69.99 per year before tax. Pricing varies by region; check Oura’s current local terms.
Quick Recap
Sources
- Oura Support: Ring 4 product and sizing information
- Oura Support: battery estimates and test conditions
- Oura: membership pricing and product information
- Oura Support: charger compatibility and water-resistance guidance
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
