Smok's 0.4ohm RPM coils work not only with the RPM but also, thanks to the separate pod, the Fetch Mini.

In some ways, the RPM coils could be considered the slightly bigger and more powerful brother of the Nord coils as they pack a little more punch in the vapour production department and, for my money, have a slightly stronger flavour as well.

Consider these as a powerful direct-to-lung alternative to the Nord and you'll be right on track.