Oura Ring 4 Ceramic Midnight - size 9
4.9 (102 items)
Limited Time Sale$114.00 cheaper than the new price!!
Free cash-on-delivery fees for purchases over $99
Product details
| Management number | 37717612 | Release Date | 2026/01/12 | List Price | $171.00 | Model Number | 37717612 | ||
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In great condition! Bought on Mercari, brand new, November 2025. Just decided to get a different size and color two months later.
It works great, looks fine. I don’t see any scratches whatsoever.
Color is called Midnight - a dark blue
Includes the charging dock as well. See photos for all included.
An Oura Membership provides access to all of Oura's features, data and personal guidance. Sold separately! Must register through Oura website or App. It will let you pay monthly or annually. $65-70
Membership includes:
Detailed sleep analysis
24/7 heart rate
Integration with third-party health and wellness apps like Strava
Advanced temperature monitoring
Blood Oxygen Sensing (SpO2)
Daytime Stress
Dynamic activity goals with Automatic Activity Detection
Heart Health (Cardiovascular Age, Cardio Capacity (VO2 Max))
Metabolic Health (Glucose Tracking, Meals)
Oura Labs
Resilience
Weekly, monthly, quarterly, yearly, and anniversary reports
Women's Health (Cycle Insights, Pregnancy Insights)
| Category | Electronics > Wearables > Fitness Trackers |
|---|---|
| Size | N/A |
| Brand | Oura |
| Condition | Like new |
Fitness Trackers
Radiant Skincare
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