The present disclosure discloses a smartphone based telemedical devices incorporating into smartphone medical devices such as stethoscopes, thermometers, ultrasound imaging devices and/or alarm generators for diagnosis or determination of the disease or health status or condition of a user. The present smartphone based telemedical devices can be advantageously and conveniently used to measure and generate and/or remotely transmitting the medical data or information generated by the incorporated medical devices thus allowing an accurate and rapid determination of the status of a user particularly under emergency particularly when there are no regular medical or hospital services are available.