Oura Ring 4 Ceramic Midnight
Oura Ring 4 Ceramic Midnight
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DESCRIPTION
Oura Ring 4 Ceramic Midnight
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Product Specification |
Details |
|---|---|
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Sensors |
Red and infrared LEDs for blood oxygen levels; green and infrared LEDs for heart rate, heart rate variability, and respiration rate; digital temperature sensor; accelerometer for movement and activity tracking |
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Compatibility |
iOS and Android; Oura App available in English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, and Danish |
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Measurement Units |
Metric and imperial |
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App Integration |
Integrates with 40+ apps |
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Width |
7.90 mm |
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Thickness |
3.51 mm |
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Weight |
5.1–8.1 g, depending on ring size |
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Battery Life |
5–8 days* |
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Charging Time |
Typically 20–80 minutes, depending on battery level |
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Exterior Material |
High-performance zirconia ceramic |
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Interior Material |
Seamless titanium |
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Water Resistance |
Up to 100 m / 328 ft |
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Scratch Resistance |
Minor scratches from regular wear are normal; scuffs from contact with metal objects may be erasable |
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Connectivity |
Bluetooth Low Energy |
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Firmware Updates |
Automatic updates via the Oura App |
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EMF Safety |
EMF-safe |
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Airplane Mode |
Supported |
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Certification |
FCC-certified |
Battery life may vary depending on usage and other factors.
Warranty: 1 Year Warranty | Human Error Not Covered