I think the only reason the dry herb cannabis vapes I mentioned earlier fall into the illegal category is that Thailand uses a very broad definition of a vaporizer. If it is a battery powered device that heats a substance and produces vapor for inhalation, it is generally treated as an illegal vaping device. That said, your question concerns a cannabis vape containing synthetic cannabinoids. That is the type of product that would be clearly illegal. There are two reasons for this. First, it is a conventional vape product that uses a cartridge containing liquid or oil, which falls within the category of prohibited vaping devices. It's not just a device being used to heat up natural cannabis flower anymore. Second, cannabis vape products, whether they contain natural cannabis extracts or synthetic cannabinoids, are typically treated as cannabis extracts. Cannabis extracts (unless administered by a doctor) remain classified as Category 5 narcotics under Thai law. Indonesia actually has very strict laws on this and an Australian woman just got caught with some cannabis vapes in Indonesia that she received in the post last month. They contained a total of about 50ml of vape oil and now she's staring at a possible 20 year jail sentence: https://www.news.com.au/world/asia/australian-woman-53-facing-20-years-jail-after-arrest-in-indonesia-over-alleged-cannabis-vape-possession/news-story/0f73a6107f6804af39411bdbb00aa6bf