Electronic cigarettes are a popular alternative to traditional cigarettes and come in two major varieties: disposable liquid cartridges and refillable liquid cartridges.
When a user decides to compare refills based on ease, the disposable cartridges are best. A user unscrews the cartridge from the base and replaces it with a new one and the e-cigarette is ready to go. Refillable cartridges feature a wick inside that is soaked with nicotine solution. A user must purchase the solution in whichever strength and flavor they choose, then use an eyedropper to drip the solution into the cartridge. Once the wick is soaked, the user reattaches the cartridge to the e-cigarette and the refill is complete.
If one wishes to compare refills based on price, the refillable cartridge wins. The nicotine solution is cheaper than the disposable cartridges and can be used at whichever strength the user prefers. Consumers can also purchase a variety of liquids for less than a variety of cartridges, as the disposables are often only available in packs.
Finally, if a user decides to compare refills based on flavor, the two are fairly even. Whereas users may get the exact flavor they wish from a disposable cartridge, a user may also mix nicotine solutions for their own creative flavors to taste. It is a matter of personal preference.
All in all, which cartridge to use is the consumers choice. Both have their strengths and weaknesses, and are available for a fraction of the cost of traditional cigarettes.