Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life
| Age Range | Adult |
| Color | Black |
| Size | 9 |
| Style | Modern |
| Compatible with | Tablet, Smartphone |
| Display Type | No Display |
| Shape | Ring |
| Meter | Sleep Duration, Heart Rate, Blood Oxygen (SpO2), Stress |
| Number of Items | 1 |
| Features | Heart Rate Monitor, Activity Tracker |
| Sport | Multi-Sports |
| Included Components | Oura Ring 4, Oura Ring 4 Charger, USB-C Cable, Information Booklet, Quick Start Guide |
| Batteries Included? | Yes |
| Brand | OURA |
| Manufacturer | Oura |
| Item model number | JZ90-54144-09 |
| Product Dimensions | 2.6 x 2.6 x 0.7 cm; 190 g |
| ASIN | B0D9WTFDBF |
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