A pulsometerPulsometer A pulsometer is a complication on a watch that allows the user to measure a person's pulse rate by timing the beats on a scale marked on the watch's dial or bezel. The user times the pulse for a full minute and then reads the number of beats on the scale. [Learn More] is a complication on a watch that allows the user to measure a person’s pulse rate by timing the beats on a scale marked on the watch’s dial or bezel. The user times the pulse for a full minute and then reads the number of beats on the scale.