9 Non-medical measuring apparatus, devices and instruments, namely, wearable activity trackers, computers, computer peripherals, wearable computer and wearable computer peripherals primarily for measuring, monitoring and tracking of activity, energy expenditure and steps, and also including measuring, monitoring and tracking of physiological and metabolic processes and vital signs in the nature of heart rate, heart rate variability, blood pulse wave characteristics, respiration rate, blood oxygen saturation, blood perfusion, pulse, blood pressure, blood chemistry, glucose levels, electrolyte levels, skin and body temperature, core body temperature, skin hydration, and electrodermal activity, and providing alerts to abnormal levels and rates and changes in levels and rates; Measuring apparatus, devices and instruments, namely, wearable activity trackers, computers, computer peripherals, wearable computers, and wearable computer peripherals for measuring, monitoring and tracking of barometric pressure and providing alerts to changes in barometric pressure; Downloadable computer programs for measuring, monitoring and tracking of blood chemistry, glucose levels and electrolyte levels, and providing alerts to abnormal levels and changes in levels; Downloadable computer programs for measuring, monitoring and tracking of activity, energy expenditure and steps, and physiological and metabolic processes and vital signs in the nature of heart rate, heart rate variability, blood pulse wave characteristics, respiration rate, blood oxygen saturation, blood perfusion, pulse, blood pressure, blood chemistry, glucose levels, electrolyte levels, skin and body temperature, core body temperature, skin hydration, and electrodermal activity, and providing alerts to abnormal levels and rates and changes in levels and rates; Downloadable computer programs for measuring, monitoring and tracking of barometric pressure and providing alerts to changes in barometric pressure; Software for measuring, monitoring and tracking of blood chemistry, glucose levels and electrolyte levels, and providing alerts to abnormal levels and changes in levels; Software for measuring, monitoring and tracking of activity, energy expenditure and steps, and physiological and metabolic processes and vital signs in the nature of heart rate, heart rate variability, blood pulse wave characteristics, respiration rate, blood oxygen saturation, blood perfusion, pulse, blood pressure, blood chemistry, glucose levels, electrolyte levels, skin and body temperature, core body temperature, skin hydration, and electrodermal activity, and providing alerts to abnormal levels and rates and changes in levels and rates; Software for measuring, monitoring and tracking of barometric pressure and providing alerts to changes in barometric pressure and providing alerts to changes in barometric pressure