You can tootle one of those all day without worrying about the battery going dead. And when you want to subohm, well they do that too
Innokin makes nice devices, I'm after their new temperature controlled Cool Fire IV.
I have had $200 worth of vape gear disappear (stolen) this week, apparently it's one of my sons friends...First it was an $80 dripper, today a $100 mod (loaded with a VTC5) and a $22 bottle of unopened liquid. I told my son track him down and let him know he has one opportunity to return the stuff or the police will be knocking on his door tomorrow.
Ugh, just found out about the mod and juice. Ruined my day.