The VAPORESSO XROS 4 Nano is a compact and versatile vaping device featuring the largest battery in the XROS series, with a 1350 mAh capacity. It includes a 1.3-inch TFT color display, allowing users to easily monitor settings and battery life. The device is compatible with all XROS pods and utilizes COREX 2.0 technology for enhanced flavor and longer pod life.