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💍 Elevate your wellness game—wear the future on your finger.
The Oura Ring 4 Smart Ring in Stealth (Size 10) is a titanium wearable that tracks over 50 health metrics including sleep, heart rate, stress, and women’s health. Featuring Smart Sensing technology, it adapts to your body for accurate, continuous monitoring. With up to 8 days of battery life, 100m water resistance, and Bluetooth connectivity, it offers a sleek, screen-free design for effortless all-day wear. Includes a sizing kit for perfect fit and a free first-month membership to the Oura health app.
| ASIN | B0D9WVKWXN |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Band Material Type | Titanium |
| Battery Average Life | 5 days |
| Battery Capacity | 19 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #286 in Electronics ( See Top 100 in Electronics ) #3 in Smart Rings |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Cellular Technology | Not Supported |
| Closure Type | No Closure |
| Color | Stealth |
| Communication Feature | Bluetooth, GPS |
| Compatible Devices | Smartphone |
| Compatible Phone Models | all current iPhone models, all current Android models |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.0 4.0 out of 5 stars (9,147) |
| Display Type | No Display |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Unknown |
| Item Dimensions | 0.94 x 0.94 x 0.31 inches |
| Item Weight | 6.3 ounces |
| Manufacturer | Oura |
| Memory Storage Capacity | 16 MB |
| Metrics Measured | Body Temperature, Heart Rate, Menstrual Cycle, Sleep Duration |
| Model Number | JZ90-54218-10 |
| Operating System | Android, iOS |
| RAM Memory Installed | 16 MB |
| Shape | Round |
| Style Name | Metallic |
| Supported Application | Fitness Tracker, Sleep Monitor, Voice Control, Time Display, Messages, Social Media, Heart Rate Monitor, Pedometer, Reminders, Weather, Calendar, Music Player |
| Supported Satellite Navigation System | GPS |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Limited |
| Water Resistance Depth | 100 meters |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |
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