Pod systems have hit the vaping industry like no other. All-in-one ecig devices are convenient for beginner vapers & enthusiasts alike with their simple, compact designs. The first thing that stands out for POD systems is the ease in which the user has with them. While they’re not quite as simple as the classic e-cig, the ultra-portable devices are an easy plug and play mods that are much more powerful than the disposable e-cigs with less work and options than the more advanced, refillable mods. When one cartridge is empty, you simply replace with a new one and throw the empty out.