New Oura Ring Generation 4 in Black, Size 8. Smart ring for activity, sleep, and health tracking. Features SpO2 sensor, accelerometer, heart rate monitoring, calorie and distance tracking. Water-resistant with rechargeable battery and Bluetooth connectivity. Designed for unisex adults and suitable for running. New in original packaging. Google Search Keywords: Oura Ring Gen 4, Smart Ring, Fitness Tracker, Sleep Tracker, Size 8, Black
| Category | Men > Jewelry > Rings |
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