Oura - Refurbished Good - Ring 4 - 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 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
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.
The RingConn® Gen 2 redefines health tracking. It is a full-featured smart ring designed for seamless, everyday wear. The digital ring offers automatic sleep apnea monitoring to help you optimize rest and an ultra-slim, lightweight build that merges comfort with style. You also get an impressive 10 to 12 days of battery life (up to 150 days with its portable charging case), quick charging, and with our RingConn® EcoPower technology, we've refined optical pathways and enhanced algorithms to achieve reduced power consumption while maintaining familiar performance levels. Best of all, you’ll get comprehensive monitoring with no subscription fees. Please note - before you order, be sure to review the Sizing Guide, as seen in the images section, as RingConn® ring sizes are different than those used in the US. Or better yet, size before you buy so you’ll know for sure - order the Gen 2 Ring Sizing Kit first, sold separately.
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.
RingConn® Gen 3 redefines health tracking with a full-featured smart ring designed for seamless, everyday wear. It offers vascular trends monitoring to bring you better insight on health, an impressive 11 to 14 days of battery life with quick charging, and a vibration function to keep you stay on top of key moments. With the Gen 3 smart ring, you can have a complete and continuous view of your health with no subscription fees. Before you order, please note RingConn® ring sizes are different than those used in the US. For accuracy, size before you buy so you’ll know for sure - order the Gen 3 Ring Sizing Kit first, sold separately. Previous sizing kits for other models like Gen 1, Gen 2, and Gen 2 Air, will not work.
| Pros for Oura - Refurbished Good - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024) | |||
|---|---|---|---|
| Sleep Tracking, Comfort, Accuracy | Battery Life, Health Tracking | Sleep Tracking, Comfort, Battery Life, Overall Performance, Design | There were no pros for this product— |
| Cons for Oura - Refurbished Good - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 12 - Stealth - (2024) | |||
| There were no cons for this product— | There were no cons for this product— | Size, Scratch Resistance, Connectivity | There were no cons for this product— |
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