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NJYUAN RS200 Smart Ring IP68 Heart Rate Smart Ring
Heart rate measurement
Oximetry
Blood pressure measurement
Sleep monitoring
Step Count
Temperature measurement
Emotional stress test
Original price was: $49.99.$34.99Current price is: $34.99. -
NJYUAN R8 Heart Rate Multi Sport Mode Track Smart Ring
Master chip: NORDIC NRF52832-CIAA
Charging chip: Siyuan SY8602
Accelerometer: QMA6100P
Battery: 23mAh, 3.7/4.2V lithium battery
Original price was: $59.99.$39.99Current price is: $39.99.