Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 12 - Stealth - (2026)
Ring Size
12Color
Stealth
Key Accessories:
- Oura - Ring 5 Official Charging Case - Size 12 - Up to a month of battery life - USB-C Cord Compatible - Black$99.00
Specifications
- Operating System CompatibilityApple iOS, AndroidApp CompatibleYesBuilt-in Storage0 gigabytesMetrics MeasuredActivity vs. inactivity, Calories burned, Duration of exercise, Duration of sleep stages, Hours slept, Resting heart rate, Skin temperatureProtective QualitiesWater resistant, Dust resistantMaximum Depth of Water Resistance328 feet
- Key Specs
- Operating System Compatibility: Apple iOS, Android
- App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Built-in Storage: 0 gigabytes
- Metrics Measured: Activity vs. inactivity, Calories burned, Duration of exercise, Duration of sleep stages, Hours slept, Resting heart rate, Skin temperature
- Protective Qualities: Water resistant, Dust resistant
- Maximum Depth of Water Resistance: 328 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- General
- Brand: Oura
- Model Number: JZ90-61620-12
- Product Name: Oura Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 12
- Color: Stealth
- Product Type: Activity tracker
- Form Factor: Ring (The size, arrangement, and physical configuration of the product.)
- Model Family: Oura Ring 4
- Year of Release: 2026
- Design
- Ring Size: 12
- Ring Size System: US
- Display
- Display Screen: false
- Compatibility
- Operating System Compatibility: Apple iOS, Android
- App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Connectivity
- Wireless Connectivity: Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Features
- Built-in Storage: 0 gigabytes
- GPS Enabled: false
- Activity
- Metrics Measured: Activity vs. inactivity, Calories burned, Duration of exercise, Duration of sleep stages, Hours slept, Resting heart rate, Skin temperature
- Multi-Sport Tracking: true
- Sensors: Temperature sensor, Optical heart rate (PPG) sensor (Detects stimuli such as heat, light, sound, motion, or pressure and responds accordingly by operating a control or initiating a function of the device.)
- Performance
- Protective Qualities: Water resistant, Dust resistant
- Maximum Depth of Water Resistance: 328 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Dimensions
- Product Height: 0.24 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 0.09 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 0.071 ounces (The out of box weight of the item.)
- Product Length: 0.24 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Power
- Rechargeable: true
- Charging Interface(s): USB-C (The connection for transmitting power to charge the device.)
- Warranty
- Warranty - Parts: 1 year
- Warranty - Labor: 1 year
- Other
- UPC: 6430060157330
Introducing the world’s smallest smart ring—Oura Ring 5, built with even more sensing power than previous generations. 40% smaller and ultra lightweight, Oura Ring 5 fits seamlessly in with your life and your style. The updated all-titanium design is more scratch-resistant and comfortable than ever, Oura Ring 5 delivers 50+ health metrics with research-grade accuracy. With 6-9 days of battery life you can even forget it’s on. No more compromises when it comes to tracking your health. IMPORTANT: Size yourself with the Oura Ring 5 Sizing Kit before you buy — Oura Rings are not US standard sizing and other Oura Ring generations, and finding the right size will result in the best experience possible. With an Oura Ring 5 Sizing Kit purchase, you will receive a $10 Best Buy gift card to use towards your Oura Ring 5 purchase.
- THE WORLD’S SMALLEST SMART RING: 40% smaller than the previous generation, Oura Ring 5 is thinner, lighter and smaller than ever. The updated all-titanium design is more scratch-resistant and comfortable than ever.
- SIZING IS ESSENTIAL: Oura Ring 5 uses unique sizing different from standard jewelry rings and other Oura Ring generations; use the Oura Ring 5 Sizing Kit to find your perfect fit before purchasing
- EVERYDAY HEALTH SENSING: Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health and women’s health metrics. Oura seamlessly integrates with over 40 apps including Natural Cycles, Strava, & more
- REBUILT FOR GREATER ACCURACY: Oura Ring 5 has been re-engineered and reconfigured, providing more precise personal health data. Larger, smarter sensors bring research-grade accuracy —all in Oura’s smallest form factor yet.
- 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
- 1 WEEK OF BATTERY LIFE: With 6-9 days of battery life, you’ll never miss a night of data.
- DIVE DEEPER WITH AI: Oura Advisor provides sound guidance as you make moves toward more sustained energy levels, better sleep, a healthy weight, and so many other health benefits
- 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.
Whats Included
- Oura Ring 5 Smart Ring
- Oura Ring 5 Charger
Disclaimers
- Legal Disclaimers*All battery claims depend on Oura Ring size, Oura App settings, feature configuration, activity, age of battery, usage, and many other factors; actual results will vary. Battery life and charge cycles vary by use and settings. Battery tests were conducted across various sizes and scenarios. See Ring Battery tips for more information.
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Introducing the world’s smallest smart ring—Oura Ring 5, built with even more sensing power than previous generations. 40% smaller and ultra lightweight, Oura Ring 5 fits seamlessly in with your life and your style. The updated all-titanium design is more scratch-resistant and comfortable than ever, Oura Ring 5 delivers 50+ health metrics with research-grade accuracy. With 6-9 days of battery life you can even forget it’s on. No more compromises when it comes to tracking your health. IMPORTANT: Size yourself with the Oura Ring 5 Sizing Kit before you buy — Oura Rings are not US standard sizing and other Oura Ring generations, and finding the right size will result in the best experience possible. With an Oura Ring 5 Sizing Kit purchase, you will receive a $10 Best Buy gift card to use towards your Oura Ring 5 purchase.
Oura Ring 4 brings you closer to what matters most — your health. With an updated all-titanium design, this smart ring features Smart Sensing, a new sensing platform that doesn’t just measure your biometrics but also adapts to you. It provides insights into over 50 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health.
Oura Ring 4 brings you closer to what matters most — your health. With an updated all-titanium design, this smart ring features Smart Sensing, a new sensing platform that doesn’t just measure your biometrics but also adapts to you. It provides insights into over 50 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health.
Meet the invisible power of effortless tracking. The new Google Fitbit Air is the unbelievably comfortable, exceptionally smart activity tracker designed to transform your health.¹ The lightweight, micro-adjustable fit sits quietly and securely, so you can wear it through work, workouts, and sleep without noticing it. Google Health brings out your best with effortless tracking and personalized coaching that’s built with Gemini and made for you.² And with up to a week’s worth of battery, it keeps up with your busy life.³
| Pros for Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 12 - Stealth - (2026) | |||
|---|---|---|---|
| There were no pros for this product— | Comfort, Overall Performance, Data Quality, Battery Life | Comfort, Overall Performance, Data Quality, Battery Life | There were no pros for this product— |
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