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“Does this ring measure blood oxygen continuously during the day, or only during sleep”

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Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Petal - (2025)-Front_Standard
Oura - Ring 4 Ceramic - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 4 - Petal - (2025)
$399.00
Save $100
The comparable value is $499.00

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