Hi Samfira and welcome to the forum. This is a question that is often asked by newcomers to vaping. The first answer back is usually a question. What is your budget? What are your other needs? Is it just for individual use? Do you need something portable? Is stealth important? And it goes on and on...
My suggestion would be to go to this part of the forum and start reading:
http://fuckcombustion.com/viewforum.php?id=2
It will soon become apparent to you that a certain type of vaporizer is more attractive to you than others. But, so that you will have a place to start, a couple of vapes that I like that you might consider and fit the "small and compact" description:
Myrtlezap or Toasty Top- good conservation of herb, stealthy, fixed temp
Magic Flight Launch Box - portable (also comes with power adapter)
Good luck!
Edit to add: I just clicked your links Samfira. Just curious why you are asking about small vapes when you have links to the NO2....... You wouldn't be spamming here, would you?