In 2017, there were 466 e-cigarette devices in the marketplace. These range from cigarette-like devices which are also called "cigalikes" to tank systems, which are also called "pens."
En 2017, había 466 de estos aparatos en el mercado: aparatos similares a los cigarrillos, también llamados "cigalikes", y sistemas de tanques, que se conocen como "pens".