It would help to know what led you to narrow it down to those two vapes. They are very different! More info on what it is that you're looking for in a portable vape would make it a lot easier to point you in the right direction. Maybe even in a different direction than you're considering right now.
In the mean time, here's a quick run-down on these two vapes and what makes them different. Out of the two, I only own the Cera, but I can give you a sort-of "forum summary" in regards to the MiniVAP.
The Cera (with loose leaf cartridge) is a fairly unique portable vape. One of its big selling points is the space-age ceramic material that it's mostly made from, which only makes a functional difference in the mouthpiece and loose leaf bowl (and thus doesn't serve much use for most using Cera with only the oil cart). Having the bowl and mouthpiece all ceramic makes for extremely easy cleaning and top-notch flavor. Other strengths are a mouthpiece that filters and cools magnificently, and extreme ease in regards to reclaiming vapor condensation.
The loose leaf Cera is a manual vape. It has no temperature sensors inside, no computer chips whatsoever. All of the temperature regulation is done by the user, principally through draw speed. Because of this, there is a large learning curve involved.
That learning curve is made a little worse by the fact that the mouthpiece does an outstanding job cooling and maintaining small particle size in the delivered vapor. For an experienced user this means that you can take huge hits comfortably compared to most other portable vapes which would have you coughing sooner and reaching for a water tool. For new users, this means that it's not as easy to tell when you're working it right.
To make matters even worse for the newcomer, heat builds up in the mouthpiece after a while and will eventually reach a point where you can't even hold it to your lips. An experienced user becomes accustomed to this and understands that as soon as the power is activated a countdown begins, and thus will only turn it on when it's actually time to vape. It's not something you leave running in the background. The experienced user can get well-medicated by the time heat becomes an issue, but a newcomer will likely still be coming to grips with the thing and then find it's become too hot to use, which is understandably frustrating for an owner who is trying to medicate with an expensive new tool...
Some other downsides to be aware of are its weight (~12oz) and its obvious color. I personally find its aesthetics stunning, and you can't know how good that zirconia feels in your hands until you hold it yourself. But, it's definitely not a stealthy vape by any means.
Because of all that, I see the loose leaf Cera as mostly a "specialist's tool", or a "vapor enthusiast's vape". It has a lot of unique strengths going for it but also involves what is perhaps some of the greatest potential for frustration among any functional portable vape (I'm excluding junk that just doesn't work, like Atmos).
It is my personal favorite vape. As an avid reader of these forums I often find myself considering the purchase of another vape and then reconsidering while thinking about potential weaknesses I'd have to deal with in comparison to Cera's strengths that I'm accustomed to. Despite that, I can't recommend it to a newcomer to vapes without reservation. It's not the best pick as a workhorse vape or as a first vape unless you have atypical interests like I do, and a strong willingness to approach things with a learning mindset, as if learning to play a musical instrument. For me, it was my second vape and I always had my trusty MFLB to fall back on.
As for the MiniVAP. Unlike the Cera, it is an "automatic" vape, meaning it has electronics inside that regulate the temperature for you. This makes it a "pick up and play" vape. It is also known for excellent flavor. Depending on what package you purchase, it can also run double duty as a desktop unit running of AC or as a battery-powered vape, though it will cost you extra.
It's larger than the Cera, but also has greater battery life (at the cost of relatively cheap and easily replaceable batteries). It's more of a backpack vape than a pocket vape.
From what I can tell the customer support of the folks behind the MiniVAP is satisfactory, but it's worth noting that they are located in Spain which could make any future repairs more of a hassle (or at the very least make response time a little slower).
It has been said that the MiniVAP could be one of the most over-priced vapes -- a theory which seems borne out by the relatively rapid price drop that occured since its launch.
Still, every owner I've seen here has sworn by it as a go-to vape. It seems to be a powerhouse and is easy to use. At a lower pricepoint, I think it would be hard not to recommend.
But there are also many cheaper portable vapes that work very well, and for the money you could get yourself a few other portable vapes, or even a desktop vape to go with it, and set yourself up for more diverse use cases, depending on your needs.
Which brings us back to the question: is there anything else you can tell us about what you're looking for?
