To support the extra circuitry and higher-ability battery, the XROS Pro is a little bit thicker than other XROS devices. I have been vaping for about seven decades and ironically virtually all the vapes I have acquired ended up Vaporesso but this one particular is undoubtedly my preferred. The XROS https://vapestoresaustralia.com/product/innokin-t20s-endura-kit-1500mah/