The Smok Nord kit has four coil options. 0.6Ω mesh DL, 0.8Ω Mesh MTL, 1.4Ω MTL and 1.4Ω MTL Ceramic.
The 0.6Ω mesh coil is specially designed for sub ohm vaping, it has a large mesh inside, giving a faster heating process and massive vapour clouds.
The 1.4Ω regular coil is designed for MTL vaping, for which you can enjoy a throat hit with similar to smoking.
The 1.4Ω MTL Ceramic coil is designed for MTL vaping but works better for those who like to chain vape a little. This is due to the ceramic material coping better with higher temperatures that might be seen with heavier vaping.
The 0.8Ω Mesh MTL coil is as the name suggests, designed for MTL vaping but will provide a higher output of vaper for a stronger hit.