The Utillian 421 is the follow up to the Utillian 420 with improved features. The brand maintained the digital display and glass mouthpiece, which were people’s favorite from the previous model. However, the few of the enhanced features are six temperature settings, more significant battery airflow control. Much like the earlier version, Utillian 421 offers a pocket-friendly frame with ceramic heating chambers that makes the vaping experience exceptional. Also, the battery power is tremendous that delivers 30% more time with a heating time of 60 seconds. Also, more temperature settings have allowed the user to enjoy a wide range of flavors, with adjustable airflow method and top cap on thick threading device features. Additionally, the glass mouthpiece stays cool during the use.