| Item Color | Black |
|---|---|
| Item Size | 7 |
| Number of Items in Set | 1 |
| Power Source | Batteries |
| Size | 7 |
| Indoor/Outdoor | Indoor/Outdoor |
| Measurement System | Decimal & Imperial |
| MPN | JZ90-1003 |
| For Operating Systems | iOS, Android |
| Department | Unisex Adults |
| Battery Life | Up to 7 Days |
| Measurement Provided | Heart Rate, Distance, Calories |
| Unit Type | Unit |
| Display Size | 2.4X External Display |
| Language | English |
| Manufacturer Warranty | 1 Year |
| Item Height | 2.000 |
| Body Area | Hand |
| Features | Temperature, Heart Rate Monitor, Water Resistant, Sleep Tracker |
| Sensors | Infrared, SpO2, Accelerometer |
| Sport/Activity | Gym & Training, Swimming, Running & Jogging |
| Display Resolution | 240 x 240 |
| Color | Silver |
| Material | Titanium |
| Brand | Oura |
| Type | Activity Tracker |
| Model | Gen 4 |
| Country of Origin | United States |
Check the listing for details. Oura Ring 4 Smart Ring - Gen 4 - All Colors/Sizes - New Open Box. Color: Silver, Condition: New other (see details), Made in United States. Listed at 229.00 USD. ⚠️Sizing Note: Oura Ring 4 sizing differs from standard ring sizes. Oura Ring 4 - Gen 4 Smart Ring (New Open Box). Oura Ring 4 (Select your Color/Size). Key Gen 4 Features Size-specific Charging Dock.