RingConn Gen 2 Air Smart Ring - Size 9 (Galaxy Silver)
RingConn Gen 2 Air (Galaxy Silver, SIZE 9). Smart Ring: DC 5V ±10% ≤16mA. SpO2 Accuracy (Arms) PR accuracy: ±2 bpm or ±2%, whichever is greater. Degree of dust & water resistance: IP68. Degree protection against electrical shock: Type BF.