The Vaporesso XROS 4 Mini brings the newer COREX 2.0 coil tech into a compact body. The main thing COREX 2.0 is meant to do is hold the flavour fuller for longer and stretch how long a pod lasts before it tastes worn out, which is usually the first thing to go on a pod. It uses a 0.4 ohm pod, a lower resistance that leans toward a warmer, slightly looser draw rather than a very tight one. The Mini keeps the footprint small and easy to carry. It stays in the XROS pod family, so pods are easy to find and swap. It suits someone who likes the XROS line and wants the updated coil in a compact device, particularly if pod lifespan and flavour are what you care about most.