Smok mods are very well known for their very poor quality. It wasn’t all that long ago when we would see someone posting nearly every other day about problems with their Smok mod.
Take a look at the GeekVape Aegis Solo or other GV mods. There are many here who have Solo’s and are very happy them. I have a few Solo’s. It is an excellent quality mod.
The Innokin Coolfire Z80 is another mod that comes very highly recommended on ECF. Everyone I know who has one is very happy with it.
FWIW several folks here have more than one Solo and/or Z80, or multiples of both. IMO you can’t go wrong buying either one.
Good luck and I hope that helps.