I thought I'd post these since the question came up:
All 1300mAh. All 808 and vGo threaded. Using Halo's triton tank, better built/quality than your average Kanger T2. Worth the extra few bucks in my humble opinion. I either rebuild the coils or get replacements from health cabin. I prefer this T2 type because it gives warmer vapor and it's a tad easier to fill than T3. If you like the T3 design, then SI carries them. None of the eGo threaded tanks fit on any of the batteries. You need to get the vGo type.
RED: SI's spinner
fatter than the other two, shorter than X2 and longer than triton. Battery life is not very impressive (but I usually run it over 4V), and because it's fatter button is kind of hard to press because it's jammed between the tank and battery outer shell. Their lower mAh models are skinner, so the button shouldn't be an issue I think. It's a nifty item to have if you get burnt taste with your juices and don't have higher resistance coils (goes down to 3.3V), or if you want to crank it up, but if so use higher resistance coils, like 2.5 or more. I believe SI only sells coils around 2.2(?), so with their native coils it's hard to take advantage of the higher voltage. Not an issue with T2 type tanks, the coils are readily available, whereas T3 vGo type is hard to find elsewhere.
WHITE: SI's X2. Longest of all 3. Also passthrough, which is nice and my favorite feature. Good battery life, but not as good as Halo. HUGE con is that it takes 6-8 hours to fully charge. But you can vape it plugged in via USB cable hookup on the bottom, so long charge time is not a deal breaker here. After couple of months it looks a suspicious shade of white. Wish I would have gotten it in darker color.
TITANIUM: Halo's triton. Most compact of the 3 and longest lasting. Average charge time is 2 hours. My favorite to carry around. Quality stuff.
Hope this helps. Of course all will take 808 threaded mini-tanks/clearos (or cartos), but when you have bigger ones that carry twice the liquid, you probably 1.2 or less ml in mini-tanks are not as appealing.
