The new smok vaper chaser clearomiser has 4 different coils, single horizontal, single vertical, dual vertical and an rba base. The subtank is a lot more popular and comes with a 1.2ohm stock coil as well as a 0.5ohm coil plus an rba deck for building your own coils. With the subtank rba deck, it can be a little fiddly to build on as you have to wrap your coil legs around the post screws them selves much like the rsbt hybrid.