I have an Iolite. I really like it. I walk the dog and take my vape and dig the stroll.
Crusing in the car, it looks like a cell phone or a walkie-talkie.
Nobody could know what I'm doing. 'Cept for us who "know."
I pack about a 1/3 gm into it. It takes about 3-5min to get going. Then...