Which one do I get, Which one do you prefer?
Vamo I have know two people that had the buttons either pop off or stop working. I still have my vamo even though I have a Provari and a Zmax V3 telescoping. Now if you want something tougher than a Vamo think about the Zmax. It will use any battery between 18350 to 18650 or even 2 18350's. Mine is SS and tough. The Vamo is easy to set up and check battery voltage or ohms. The Zmax works better with the most atty's and is a bit tougher but not as easy to check ohms. The SVD is just not built tough enough.
My Vamo v3 from Fasttech didn't last 2 weeks.