4PC G2 Coils - Uwell Caliburn

Uwell refined the Caliburn G coil architecture for the G2 generation, and these replacement coils carry that evolution forward. Pro-FOCS flavor technology—Uwell's proprietary system for optimizing the interaction between mesh, cotton, and airflow—reaches its most mature implementation here. The result is flavor consistency that holds from the first fill to the last, with noticeably less degradation over the coil's lifespan compared to earlier Caliburn coil generations. Each resistance option targets a specific draw preference without overlap, giving users clean choices rather than confusing redundancy. The press-fit design maintains backward compatibility with Caliburn G pods that accept removable coils, meaning G2 coils work across multiple Caliburn generations—extending the purchasing audience beyond just G2 device owners.