The Utillian 621 is an improved version of the popular Utillian 620 vaporizer. It has some new features like a USB-C port, a convection helix, and a Wax Canister included. This model is great because it can handle both dry herbs and concentrates with ease. It's very easy to use with its digital display and precise temperature control. The battery charges quickly from 0% to 100% in just 90 minutes and lasts a whole day of use for most average users. Key Features: 2300 mAh USB-C Charging Digital Display Convection Heating Updated Mouthpiece Magnetic Stirring Tool Included Wax Canister Precise Temperature Control