The Big Baby Beast is the larger brother to the Baby Beast from SMOK. The tank is near identical to its smaller brother, it has the iconic hinged, swing-to-open, top fill system, identical aesthetics, and uses the same coils. However there are a few key differences. Firstly, the diameter of the tank has been increased from 22mm to 24.5mm, in turn this also boosts the juice capacity from 3ml to 5ml. Not only is the tank bigger, you also get a wider mouthpiece as well.