Oil vaporizers are an excellent choice if you need the smallest vaporizer possible and want a device that is easy to use. Essential oils are thicker than e-juice, but thinner than wax concentrates, and require a special atomizer that is made just for these oils. Many of these devices are slim and ultra portable pen style vapes with special tanks, so they are easily mistaken for e-juice vapes in public. The downside is that these oils may be a bit harder to obtain in bottles, as many dispensaries only sell oil in prefilled disposable tanks.
Tip: Some vaporizers can vape both wax and oils simply by switching out the atomizer.