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💡 Oura Ring 4: Your health, smarter and sleeker than ever.
The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, featuring Smart Sensing technology that tracks over 50 health metrics including sleep, heart rate, stress, and women’s health. It offers up to 8 days of battery life, a unique sizing system with a dedicated sizing kit, and multi-ring support for style versatility. The purchase includes a free first month of Oura membership, unlocking personalized health insights via the Oura app.




















| ASIN | B0D9WW8V53 |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Age Range Description | Adult |
| Band Color | Gold |
| Band Material Type | Titanium |
| Battery Average Life | 5 days |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #23 in Electronics ( See Top 100 in Electronics ) #1 in Smart Rings |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Case Material Type | Metal |
| Color | Gold |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.0 out of 5 stars 7,231 Reviews |
| Display Type | No Display |
| GPS | GPS Via Smartphone |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Global Trade Identification Number | 06430060153240 |
| Human Interface Input | Unknown |
| Item Dimensions | 0.98 x 0.98 x 0.28 inches |
| Manufacturer | Oura |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Model Number | JZ90-54216-04 |
| Operating System | Android, iOS |
| Shape | Round |
| Special Feature | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Style Name | Metallic |
| Supported Application | ['Sleep Monitor', 'Fitness Tracker', 'Heart Rate Monitor', 'Stress Monitor', 'Women's Health Tracker', 'Activity Tracker', 'Apple Health', 'Google Health Connect', 'Natural Cycles', 'Flo', 'Strava'] |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Standard/Full |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX7 |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |
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