| Management number | 214417773 | Release Date | 2026/04/12 | List Price | $159.60 | Model Number | 214417773 | ||
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Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 50 health metrics including sleep, readiness, activity, heart health, stress, metabolic health, and women’s health. Oura Ring quietly and comfortably monitors your health and with 5 to 8 days of battery life — you can forget it’s even on. With multi-ring support, change Oura Ring 4 styles as easily as changing your outfit. If you have two or more Oura Ring 4 styles, you can now switch easily between different finishes in the Oura App.

| Brand | OURA |
|---|---|
| Color | Brushed Silver |
| Shape | Round |
| Band Color | brushed silver |
| Model Name | Oura Ring 4 - Brushed Silver - Size 9 - Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life |
| Style Name | Metallic |
| Closure Type | No Closure |
| Display Type | No Display |
| Manufacturer | Oura |
| Model Number | JZ90-54220-09 |
| BuiltIn Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Warranty Type | Standard |
| Controller Type | Ring |
| Item Dimensions | 0.91 x 0.91 x 0.31 inches |
| Target Audience | Unisex Adults |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Operating System | Proprietary (Oura) |
| Battery Cell Type | Lithium Polymer |
| Wireless Provider | Unlocked |
| Band Material Type | Titanium |
| Case Material Type | Titanium |
| Compatible Devices | Smartphone |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Battery Charge Time | 80 minutes |
| Battery Average Life | 5 days |
| Warranty Description | 1 Year Manufacturer |
| Wireless Compability | Bluetooth |
| Age Range Description | Adult |
| Communication Feature | Bluetooth |
| Human Interface Input | Buttons |
| Supported Application | Fitness Tracker |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Compatible Phone Models | Android Devices, iOS Devices |
| Connectivity Technology | Bluetooth |
| Item Dimensions D x W x H | 0.91"D x 0.91"W x 0.31"H |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Supported Satellite Navigation System | GPS |
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