The U.S. catalog contains three major closed pod-system brands, JUUL, Vuse and NJOY, each built around prefilled pods that customers return to buy again. Alongside them is a much larger field of disposable devices, plus open systems from hardware makers such as SMOK, Vaporesso and Uwell that users refill themselves.
Closed pod systems create a different customer relationship from disposables. A disposable is a single transaction, while a pod owner comes back for replacement pods, which can build steadier repeat revenue. The closed, branded nature of these systems also makes their authorization status easier to verify against the FDA's product list.
Open and refillable systems add another option for engaged customers and avoid some of the disposable-specific regulatory pressure, but they require a wider range of e-liquids and a little more customer guidance. Disposables remain the easiest entry point but carry the greatest regulatory concentration risk.
There is no single correct mix; the choice depends on your customers and your state's rules. Review the full range, including the JUUL, Vuse and NJOY lines, in the brand directory.