1. Battery: Nautilus Prime X uses single 18650 battery; Nautilus Prime comes with a built-in 2000mAh battery;
  2. Screen: Nautilus Prime X has a 0.96’’ big color screen, while the Nautilus Prime is 0.69’’ OLED screen;
  3. E-liquid Capacity: the standard Nautilus Prime X has a 4.0/4.5 ml capacity while the Nautilus Prime is 3.4 ml (the TPD version has a 2ml capacity in both devices);
  4. Material: Nautilus Prime X is Zinc alloy with microfiber leather; Nautilus Prime is Aluminum alloy;
  5. Pod and coil: Nautilus Prime X includes two pods with one Nautilus and one BP coil; Nautilus Prime only has a Nautilus coil in the package;
  6. Chipset: The Nautilus Prime X comes with an upgraded smart chipset that will suggest the best wattage range for your vaping, maximum wattage protection in AUTO mode, puff counter, screen color and brightness adjustment; Nautilus Prime has the basic function to adjust the output modes.