T-vape is cheaper than the Pax. Anything under $100 will burn your herbs and will be unreliable. That being said, anything that looks like the Atmos will burn your herbs even if they cost more than $100.
It's a good size to be considered one, some people lump it in just because of its size. I don't, it's a vaporizer of its own.
Well when you put it that way, yeah it's a vaporizer not a vape pen. It's way too wide. It's indeed short, but very wide if you compare it to a pen.