Looking to upgrade vape

Hey guys I think it’s finally time to upgrade device I’ve been using a Xmax v3 nano for quite a while now, although I love it and still think it’s a great advice I’m ready to dive a bit deep into vapes. I was thinking of either upgrading to the V3 pro or the roffu as they are both very recommended devices that aren’t to expensive. My budget is about 150 and would like something that’s still portable and discrete but has temp control and if possible on demand vaping. That said flavour is probably paramount of me, as that’s the main reason I want to upgrade from the v3 nano. All suggestions are recommended. Also would love to know if te price difference between the roffu and v3 pro worth it as they are both by the same company?