The Caliburn range of open pod devices have powered their way to top of this category of e-cigarettes, its popularity and regular upgrades has meant this is one of Uwells most successful products to date. The latest version is now available, the Caliburn X is the most advanced in this series and for the first time they have introduced an OLED screen to display the necessary data. Uwell have powered the new Caliburn X with an 850mAh built in battery which is a welcome upgrade, additionally they have made their new device backwards compatible with its predecessors G coils (0.8Ω/1.0Ω/1.2Ω). You can now lock/unlock your device and adjust the wattage between 5W - 20W, as well as monitor your puffs with the handy on screen puff counter. The airflow feature present in the Caliburn G has not been eliminated, instead it has been enhanced with a side mounted slider which allows you to tailor the tightness of your draw. The Caliburn X is the perfect companion for 50/50 ratio e-liquids, this is a culmination of all of the previous Caliburn models and a truly premium piece of kit!