Analog meters were a simple, mechanical device that measured electrical, water or gas usage using dials and a wheel similiar to the one in the picture above.  The smart meters are computer controllers that create a date and time stamp for your home utility usage that displays with a digital LED panel.  From this data log, your home activities can be detected as to when you sleep, when you wake up, when you are in the shower, when your coffee maker turns on.  This type of surveillance violates your right to privacy.