A portable device that receives data provided by one or more sensors and displays statistical data related to the sensor data or otherwise related to the person. Statistical data may include high, low, average, mean value, median value, standard deviation, least square, variance, distribution, compilation, etc. for or at any given time or period of time for the person being monitored, as well as for such values for segments or groups of the population, or limit values, or target values, etc. The values may represent measurements and other data related to physiological signs and parameters such as blood pressure, heart rate, body temperature, electrocardiogram, glucose level, substances and/or chemical presence or level, analyze measurements, etc. The portable device may also display such measurements. The portable device may compute the statistical data, with or without the aid of a remote computer, and/or store statistical data, and/or a remote computer may compute and/or store statistical data. The portable device may communicate with a remote computer through a wireless link from the portable device, which may compute and/or store statistical data and measurements.