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Features

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.

• Designed For 24/7 Wear

  The updated design of Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin.

• Sleep

  Get the best sleep of your life, and then some. Wake up to in-depth sleep analysis, so you can improve your habits and transform how you feel. Oura provides insights into your sleep staging throughout the night, blood oxygen levels, HRV and nighttime heart rate.

• Readiness

  Know when to push it and when to take it easy with the Oura Readiness Score. It takes into consideration over 30 different body signals — including temperature, heart rate, HRV, and sleep — to tell you how ready you are for the day ahead.

• Activity

  Whether you're running a marathon or running errands, Oura tracks your daily activity, steps, calories burned and workouts while helping you strike a balance between movement and recovery.

• Metabolic Health

  Learn how to fuel your wellbeing. See a nutritional breakdown of your meals, understand your meal timing and understand how what you eat impacts your holistic health.

• Heart Health

  From monitoring your daily heart rate and HRV to discovering your Cardiovascular Age and Cardio Capacity, Oura helps you take care of one of the key indicators of your overall health — your heart.

• Women's Health

  Your cycle impacts your mood, sleep, activity and more, every day. Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your holistic health. Track the changes in your body throughout your cycle and predict your period up to 30 days in advance.

• Stress

  Oura will help you identify signs of stress and understand how well your body handles it. You'll know when you need to incorporate more self-care practices and how to recover from long term stressors.

• Stress Resilience

  Stress Resilience visualizes how well your body withstands stress over time and helps you build resilience to get through life’s challenges. A healthy amount of stress, sleep, and recovery keeps you prepared for whatever comes your way.

• 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.

• App Compatibility

  Automatically sync your health and workout data from your favorite apps through Apple Health, Google Fit, Health Connect, Strava, and Natural Cycles.

• iPhone and Apple Watch Compatibility

  Get your Oura data at a glance from your iPhone or Apple Watch with iOS widgets and Apple Watch complications. You can also access a companion version of the Oura App on your Apple Watch.

• Android Compatibility

  The award-winning Oura App is compatible on Android devices running Android 8.0 and higher with Google Play services. The device must also support Bluetooth 4.0.

• Language Availability

  iOS and Android apps available in English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Danish, and Swedish. Supports metric and imperial units of measurement.

What's Included