Wearable activity trackers, wearable computers in the nature of smartwatches, electric sensors not for medical use, and computer systems, comprising nonmedical electric sensors, computer hardware, and recorded and downloadable software, all for measuring, tracking and analyzing biosignals, physiological data, exercise data and motion data for purposes of tracking, analysing, and reporting health, wellness, fitness, stress, activity and sleep metrics; Wearable activity trackers, wearable compu...