| Power Source | Batteries |
|---|---|
| Size | 9 |
| Color | Black |
| Indoor/Outdoor | Indoor/Outdoor |
| Measurement System | Decimal & Imperial |
| Material | Metal |
| For Operating Systems | Android, iOS |
| Brand | Oura Ring |
| Type | Activity Tracker |
| Department | Unisex Adults |
| Measurement Provided | Calories, Distance, Heart Rate |
| Battery Life | Up to 7 Days |
| Language | English, French, Spanish |
| Display Size | 9 |
| Model | Oura Ring Gen 4 |
| Body Area | Hand |
| Features | Heart Rate Monitor, Sleep Tracker, Temperature |
| Sensors | Accelerometer, GPS, SpO2 |
| Sport/Activity | Running & Jogging |
| Item Width | 171.3 X 74 X 7.3 mm |
| Item Weight | 188.4 Grams |
| Country of Origin | United States |
| UPC | 6430060153172 |
Check the listing for details. Oura Ring Gen 4 - Black - Size 9 (Light Scratching). ~401~. Color: Black, Condition: Used, Made in United States. Listed at 213.25 USD. Oura Ring Gen 4 - Black - Size 9. Physical condition : This item has light scratching (see photos). This does not affect the functionality or condition of the device inside. We are committed to resolving any issue promptly and fairly.