Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024)
Customers are saying
Customers value the product's sleep tracking capabilities, with many appreciating its detailed monitoring. They also find the product to be accurate and comfortable, with some users noting its pleasant wearability.
Color
StealthOura 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.
- 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
Reviews
Rating 4.9 out of 5 stars with 13 reviews
- Sleep Tracking (5)
- Accuracy (3)
- Comfort (3)
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.
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.
Apple Watch SE 3 is packed with health, fitness, connectivity, and safety essentials—all for a great value. Track your sleep score. Get richer health insights in the Vitals app. Stay active with a wide range of workouts. Save time with fast charging. See your info at a glance with the Always-On display. And still get all-day, 18-hour battery life.
Get a deeper understanding of your body with the all-new Galaxy Ring. Merging the convenience of a wellness tracker with the timeless elegance of a sleek band, Galaxy Ring helps go-getters track their busy days in style. Packing the latest tracking innovations into a compact design that fits comfortably on your finger, Galaxy Ring tracks the valuable wellness insights you need to keep a pulse on your life, from the conference room to the yoga studio to dinner with family and friends. Enhanced by Galaxy AI,¹ Galaxy Ring gives you new ways to feel amazing, like Energy Score — just open your phone to learn how ready you are to take on the day. You’ll also get a great night’s rest while Galaxy Ring does its thing — this sleep tracker is so comfortable, you’ll hardly know it’s there. The feather light silhouette slips seamlessly into your life with a durable design² that allows you to wear it confidently from your morning shower to the gym, while a long-lasting battery³ lets you track insights for up to six days³ in between charges. Slip on a new, easier way to keep your health on track — Galaxy Ring
| Pros for Oura - Ring 4 - Refurbished Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024) | |||
|---|---|---|---|
| Sleep Tracking, Comfort, Accuracy | Sleep Tracking, Overall Performance, Comfort, Battery Life, Design | Overall Performance, Battery Life, Ease of Use, Size, Fitness Tracking | Battery Life, Comfort, Sleep Tracking, Overall Performance, Design |
| 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— | Scratch Resistance, Size, Connectivity | There were no cons for this product— | Scratch Resistance, Feature Set |
Specs
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