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💍 Elevate your wellness game with the ring that works as hard as you do.
The Oura Smart Ring 4 is a sleek, titanium wearable designed for continuous health monitoring, including heart rate, sleep, and activity tracking. With an impressive 8-day battery life, 100m water resistance, and seamless Bluetooth connectivity to iOS and Android, it offers professional-grade insights in a minimalist form factor tailored for everyday comfort and style.
| ASIN | B0D9WWBQSG |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Material Type | Titanium |
| Battery Average Life | 8 days |
| Battery Capacity | 8000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery capacity | 8000 Milliamp Hours |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | 432 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Wearable Tech Rings |
| Box Contents | Oura Ring 4, Oura Ring 4 Charger, USB-C Cable, Information Booklet, Quick Start Guide |
| Brand Name | OURA |
| Case Material Type | Titanium |
| Clasp Type | Tang Buckle |
| Closure Type | Tang Buckle |
| Colour | Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Tablet, Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ring |
| Country of Origin | Estonia |
| Customer Reviews | 4.2 out of 5 stars 8,657 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 06430060153233 |
| Human Interface Input | Unknown |
| Item Dimensions | 24 x 24 x 7 millimetres |
| Item Dimensions D x W x H | 24D x 24W x 7H millimetres |
| Item Weight | 0.19 Kilograms |
| Manufacturer | Oura |
| Metrics Measured | Accelerometer |
| Model Name | Oura Ring 4 - Black - Size 15 |
| Model Number | JZ90-54144-15 |
| Operating System | Android |
| Operating system | Android |
| Product Features | Activity Tracker |
| Product Warranty | 3 year manufacturer warranty |
| Shape | Ring |
| Special feature | Activity Tracker |
| Sport Type | Multi-Sports |
| Style Name | Minimalist |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Warranty Type | Lifetime |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |
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