You can calibrate from the level of the bike computer or our mobile application. These are exactly the same steps.
In order to perform it, disconnect from the pedals, place the arm vertically downwards, so that no external force acts on it. Then select the “calibrate” option on a given device. After a few seconds, the information about the success of the operation should be returned. It is recommended to perform the calibration after making a few turns of the crank or driving a short distance.