Pod mods consist of “pods” both empty or pre-filled with e-juice, and a compact, hand-held battery. The pods fit into a pod bay in the battery. Pods mods usually have no buttons and are draw-activated. They feature USB charging and low-amperage batteries. Pod mods are popular because they are easy-to-use, portable, and compact. No settings to fidget with and no messy refills. Read on to see our list of the best pod system vapes.