| Product condition | Very good: fully functional. Some light scratches or scuffs. |
| Packaging condition | Opened. May have small scuffs, minor dents or tiny tears. |
| Scope of delivery | Refurbished Oura Ring 4 (4, Black), Original accessories |
| Warranty | 24 Months Warranty (Bring-in) |
| 30-day right of return | 30-day right of return |
The integrated sensors continuously measure over 30 different health parameters during daily use, such as sleep, heart rate, respiratory rate, and stress levels.
Providing up to 8 days of power on a single charge, the device enables long-term monitoring without frequent charging interruptions.
The casing, made entirely from titanium, reliably protects the internal components from everyday wear and tear.
