The choice ultimately depends on your personal preferences and needs. One key difference is Crystal Bars make use of more advanced mesh coils, which can provide more flavoursome puffs. Both Crystal Bars and Elf Bars are compact and user-friendly disposable vapes that come pre-filled with e-liquid and are easy to use. Each brand offers a wide range of flavours with 2ml of e-liquid that last approximately 600 puffs. However, Crystal Bars are only available in 20mg nicotine strength, while Elf Bars offer a range of nicotine strengths including 10mg and 20mg.