The Aspire Athos Replacement Coils are powerhouses for flavor.
The A3 features a 0.3Ω triple coil design and is rated for 60-75 watts. Although its not a crazy super sub ohm coil head, you will find that the flavor more than makes up for it
The A5 features a 0.16Ω penta coil design and is rated from 100-120 watts. The penta coil head will give you great flavor with a nice boost in vapor due to the higher wattage rating.