Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024)
Related Item
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 Compatibility: Apple iOS, Android
- Built-in Storage: 0 gigabytes
- Metrics Measured: Activity vs. inactivity, Blood oxygen, Hours slept, Calories burned, Resting heart rate
- 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: JZR9-54218-12
- Product Name: Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12
- Color: Stealth
- Product Type: Activity tracker, Activity tracker
- Form Factor: Ring (The size, arrangement, and physical configuration of the product.)
- Model Family: Oura Ring 4
- Year of Release: 2024
- Design
- Ring Size: 12
- Ring Size System: US
- Display
- Display Screen: false
- Compatibility
- Operating System Compatibility: Apple iOS, Android
- 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, Blood oxygen, Hours slept, Calories burned, Resting heart rate
- 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: 0.6 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: 7.9 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: 3.4 ounces (The out of box weight of the item.)
- Product Length: 2.88 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: 6430060156272
THIS ITEM IS REFURBISHED 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 30 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health.
- Oura Ring 4 Refurbished: Same functionality, same beautiful design, more savings. This certified refurbished Oura Ring 4 is in excellent condition and has only minor cosmetic blemishes. It has been properly reset, cleaned, and packaged with all parts and accessories. Backed by a 90 day warranty.
- 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.
- Oura Ring 4 Refurbished: Same functionality, same beautiful design, more savings. This certified refurbished Oura Ring 4 is in excellent condition and has only minor cosmetic blemishes. It has been properly reset, cleaned, and packaged with all parts and accessories. Backed by a 90 day warranty.
- 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.
Whats Included
- Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 5
- Oura Ring 4 - Smart Ring - Size Before You Buy with Oura Ring 4 Sizing Kit - Size 5
Compare similar products
THIS ITEM IS REFURBISHED 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 30 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.
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.
| Pros for Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024) | |||
|---|---|---|---|
| There were no pros for this product— | Sleep Tracking, Overall Performance, Comfort, Battery Life, Data Accuracy | Sleep Tracking, Overall Performance, Comfort, Battery Life, Data Accuracy | Sleep Tracking, Overall Performance, Comfort, Battery Life, Data Accuracy |
| Cons for Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024) | |||
| There were no cons for this product— | Size, Scratch Resistance, Connectivity | Size, Scratch Resistance, Connectivity | Size, Scratch Resistance, Connectivity |
Specs
Reviews
Customer Images
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
The Future is here Today
Oura 4 does it all !!! Plenty of facts about your body that explain why you act and feel the way you do !! No more guessing and actually predicts what's next !! Very impressed ! Buying my spouse one now !! She was jealous of mine !! Haha !
This review is from Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 6 - Gold - (2024)
Posted by TerryJ
- Rated 5 out of 5 stars
Excellent help
The set up was easy. I sized my ring finger in store and it was accurate to the product. The information provided by the app is helpful in managing my health and routines. This is a great monitor, not for fitness tracking.
This review is from Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 6 - Silver - (2024)
Posted by user475109
- Rated 5 out of 5 stars
Ring of Power.
A must have for anyone who wants to optimize their health and sleeping behavior and routines. Self knowledge is real power
This review is from Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Rose Gold - (2024)
Posted by JayT
