Marketers love to slap "premium" on anything with a metal finish or a sleek design. But what does premium actually mean for a disposable? Usually just a higher price tag. The internal components—the coil, the battery, the e-liquid—are often the same as cheaper models.

Look for cues that actually matter: does the device have a brand-name battery? Is it USB-C or micro-USB? USB-C charges faster, so it's worth paying a little extra for. Also, check the e-liquid capacity—more juice means longer life, but it also means a heavier device.

One 'premium' cue to ignore is the word "disposable" itself. Just because something is single-use doesn't make it low-quality. Some of the best-tasting devices are simple, no-frills disposables. Don't let fancy packaging convince you to pay double for the same experience.