Most pod vapes share similarities with vape pens. It could be argued that a vape pen is more versatile as typically it can be used with any type of atomizer/tank. Advanced vape pens tend to have a larger vape juice capacity and greater battery life. However, with the advances of pod vape systems, they now come with a variety of battery capacities. So a versatile pod vape will be comparable to a vape pen, it would probably come down to which design format you prefer.