Depends on your portable, don’t it. I have a G-Pen Elite which has a fairly small bowl but can deliver a good whack.
The biggest problem with that pen is the battery life, so I decided to get a new one. Was tempted by a desktop, but then went against that because I don’t want to be moving that around as I go from couch to settee, etc, so bought a Boundless CFX and am happy with that, especially with a bowl that holds 0.75g. Your pen is more like my G-Pen, the CFX is more like the Mighty but at less than half the price unless you buy a Mighty on AliE, they are obviously returns/reconditioned, but when that means the price goes down to $113 with free delivery it does get tempting. That’s how I got my G-Pen, was something like €35 instead of €140 new, has been perfect apart from the battery life which is always an issue with these pens.
But don’t forget one thing. The residue. The lower your vape temp, then more compounds that can have a hit are left behind. You can throw that away, or you can just store that and use it in edibles, drop it in your coffee, mix it in with yoghurt, just sling it down your throat, whatever, no sense in wasting valuable cannabinoids, terps, etc. Hell, you can drop it in a pipe or roll it up and smoke it, but the bottom line is that, unlike with smoking where a very considerable percentage of the good stuff just goes up in the air and the ash is useless, the residue can still be used so you can get more use per gram once you get things dialled in to the hit you want.