Mod, just as the name implies, can modify your vaping experience with its powerful output and multi-functions. Unlike a vape pen or a vape pod, a vape mod can control the vape device in several aspects including temperature control, wattage control, airflow adjustment, replacement of different coils, etc. However, the powerful output and functions mean a larger battery and more sophisticated design, therefore, vape mod often comes in a bulky box shape and heavy weight compared to other vapes.