Subohm is something that we hear quite a bit as well as see. So what is it? Subohm is any tank or coil that can achieve a resistance or ohms below 1.0 for example 0.15, or 0.5ohms. Subohm tanks usually require a bit more wattage than non-Subohm or anything above 1.0ohms. They also tend to hit a bit harder but also provide more flavor which is always nice. There are smaller kits that do Subohm with out providing to big of a hit and are usually around .5 or .8 ohms.