Scanadu, is the startup behind a small handheld scanner that measures a patient's vital signs like heart rate and temperature.
With this gizmu you can share your medical-data with doctors directly from the Scanadu-app. Then a patient could take his vitals before going to a hospital so the doctor would have the data in hand upon his eventual treatment.
Doctors are still necessary to analyze the collected data, but now patients can simplify that process. Also such smart device could dramatically reduce a country's health care costs.