Once in a while a huge power surge of thousands of volts will travel through electricity lines right into homes.  Analog meters are grounded, meaning they have a copper bar inside that connects to the ground rod beneath the dwelling.  Smart meters have no ground, and cannot do a thing to protect you from a giant power surge.  Here's an article describing what happened in Stockton, California, when a truck hit a utility pole and wiped out 5000 homes.

Quote: A power surge left thousands without power in Stockton on Monday after smart meters on their homes exploded.  [The surge was heard] as a large pop, a bomb going off, and strong enough to shake a house.