0.6 ohm and 0.8 ohm top-fill pods are the newer version and are compatible withall known Vaporesso XROS models, including XROS, XROS Mini, XROS Nano, XROS 4, XROS PRO, and XROS 5. 0.7 ohm side-fill pods are compatibleonly with XROS 3 and earlier models.
