Vaporesso XROS 4 NANO — With the largest battery in the Xros Family, is the first XROS to feature a 1.3'' TFT color screen. It offers a 1350 mAh battery, 2A fast charging, button operation, and adjustable airflow all in one device. COREX 2.0 technology in the 0.4-ohm pod provides richer flavor and longer pod life, supported by the stable Axon chip. It is fully compatible with all XROS pods.