Error percentage means the missing or erroneous data, typically derived from poor belts contact with the skin, low battery status of the device, or interference in the data transmission during the real time monitoring.


The indicative classification for the data quality based on the the error% is:

  • <10% Excellent
  • 10-25% Good
  • 25-35% Moderate
  • 35-50% Fairly poor
  • >50% Poor


If you continue to get poor results with your device see here how to get your device repaired.