A quick Google search of the words 'vapor pen' shows us a variety of pens. Notice the other words that people use when searching for them, including 'dry herb' (marijuana) and 'cute.'
Popular vapor pens include:
Juul (pronounced Jewel)- 'Starter Kits' retail for $49.99:
A Juul Kit with different nicotine flavor inserts
A Juul uses a USB port to charge
Phix- 'Starter Kit' retails for approximately $34.99; additional pods (4 per pack) retail for $22.99
Very similar in style to Juul
Phix with charger & extra cartridge