How Clearomizers differ to Cartomizers is that they do not contain any filler material as you see in the Cartomizers.
They consist of a metal tube that extends up the middle of the body. In some clearomizers, the heating coil is located at the top of the tube and sometimes at the bottom. Either way, fiber wicks extend from the atomizing coil and they soak up liquid and carry it to the heating coil.
Clearomizers have a tip at the top that must be removed for filling. E-liquid is held inside the body of the clearomizer tank.
such as the Ego Clearomizer, are thrown away when they no longer perform well (usually 2-4 weeks, depending on usage). Some people prefer disposable styles, because they don't want to change the parts out. They may find them more convenient.
such as the Vivi Nova Tank and the eVod Tank systems, allow the user to take them apart and replace the heating coil when it no longer performs well. Replacing a heating coil is more cost effective than replacing the whole unit.
Some clearomizers, like the Kanger eVod
have the heating coil placed at the bottom of the clearomizer.
Like the Vivi Nova
the heating coil is placed at the top
You may need to vape horizontally to get maximum effect.
The capacity of clearomizers can differ greatly.
The small clearomizers hold about 1.5 ml of E-liquid (Kanger eVod) and the largest ones hold about 3 ml or more. (Vivi Nova tank).
Clearomizers are available in standard and low resistance. Resistance can range from 1.5Ω up to 2.8Ω (ohms)