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2026-11-07
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Oura Ring Gen 4 Stealth Matte Black Fitness Health Sz 8
$125.00
$162.5
30% OFF
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Product Details
Description
Specifications
Care Guide
Oura Ring Gen 4. Model OA12. Size 8. Titanium Stealth Matte Black finish. Includes original box with charging pad and USB cable. In good pre-owned working condition with some light surface scratches. Sensors & Smart Sensing: Research-grade sensors with an adaptive algorithm that adjusts to finger anatomy, skin tone, activity, and position for more continuous/accurate data while optimizing battery. Upgraded to 18 signal pathways (from 8 on Gen 3). Includes: • Red + infrared LEDs for oxygen (SpO2) during sleep. • Green + infrared PPG for 24/7 heart rate, HRV, and sleep respiration rate. • Digital temperature sensor for skin temperature trends. • 3D accelerometer for movement/activity.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.