During calibration, Vitastiq must be in continuous contact with the skin for about 12 seconds while you are moving the tip of the pen along your thumb (as shown on the screen).
Each person has their own skin type. That is why the calibration is necessary. During the calibration step, your skin resistance will be determined. If you don’t calibrate properly or don’t use the same pressure on other points, your readings will be inconsistent.
What an innovative project! You can track your vitamin trend anywhere, anytime with Vitastiq!