20 Pcs R30 Ecg Body Temperature Smart Health Ring Heart Rate Blood Oxygen Ecg Detection Sleep Waterproof Smart Ring

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20 Pcs R30 Ecg Body Temperature Smart Health Ring Heart Rate Blood Oxygen Ecg Detection Sleep Waterproof Smart Ring

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20 PCs R30 ECG body temperature smart health ring heart rate blood oxygen ECG detection sleep water…

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20 Pcs R30 Ecg Body Temperature Smart Health Ring Heart Rate Blood Oxygen Ecg Detection Sleep Waterproof Smart Ring

20 PCs R30 ECG body temperature smart health ring heart rate blood oxygen ECG detection sleep waterproof smart ring