Lost Mary and Elf Bar both offer high-quality vaping devices with unique designs. Lost Mary is known for its elegance, innovation, and robust flavors, with standout models like the OS5000, MO5000, and the luxurious Luster Edition. Elf Bar, on the other hand, is renowned for its consistency, innovative design, and variety, with models like the BC5000, Funky Republic TI7000, and TE6000.