Twistie, I just did some checking, the Guardian III is sold out on VV's site, they have the Guardian but it is not the same thing, the III version uses a 18650 battery & the other uses built in battery with only 1900mah capacity. With replaceable 18650 batteries you are going to have a better experience, because if you have 2 cells, you can be using one while charging the other, thus never having to go without a vape, also good quality 18650 batteries can have higher than 1900mah capacity, like the Samsung 30Q which has 3000man capacity (longer run times), with a built in battery you are going to have to recharge & wait until it's fully charged again. Also the Guardian is not a variable power device, the Guardian III is, this feature alone makes the III a better device. I found the Guardian III on FT ( a Chinese vendor) for sale here, https://www.fasttech.com/product/4125600-authentic-smoktech-smok-guardian-iii-75w-vw-tc if you pay the $3 approx for upgraded shipping you should get the package within 10 days of it leaving the vendor. If you are interested I have a group buy going on for Samsung 30Q batteries here: http://www.vapercafeaustralia.com/posts/137408/ These are a top notch battery & highly regarded by battery experts.