If you are new to e-cigarettes and vaping, you will find that most e-cigarettes come in something called a starter kit. A starter kit contains the basic components you will need to get started, which you can then supplement with replacement parts and additional cartomizers or cartridges and/or e-liquid as needed.
Choose one of the 2-piece electronic cigarette starter kits.
The 2-piece electronic cigarette consists only of a rechargeable battery and a replaceable cartridge (cartomizer). The cartomizers come pre-filled, eliminating the need for juice dripping or cartridge filling; refilling or switching flavors is done simply by unscrewing and screwing in a different cartridge. A simple and easy to use type of electronic cigarette - just plug in and start vaping.
Choose one of the big battery e-cigarette starter kits.
Big battery models are one of the newest styles of e-cigarettes on the market. They feature a high capacity battery which provides a longer battery life and more puffs per battery charge. They are about 50 percent wider than a mini e-cigarette, but only slightly longer. They offer most of the advantages of a hybrid (mod) in a smaller package.
Stay away from the 'free trials' that lock you into monthly commitments.