"Electronic" smoking is a misnomer.
It's just a vaporiser. A small, smokeless, portable version of a hookah, with cartridges pre loaded with an thermally reactive procesed muck instead of loading well seasoned and oiled shish into a chamber and placing coals on it to heat it.
What's more, the cartridges taste feral.
Is it better for you than smoking a cigarette normally?
Technically yes, there's no smoke inhalation, merely vapor and some particulate matter. But considering the extra chemicals that have to be put into the cartridges to make sure they stay "fresh", it's debatable.