Utillian 721

The base levels and controls remained identical; the mechanics did not. The 721's heating chamber is made of aluminum, and the mouthpiece — made of heat-resistant plastic — swings sideways after releasing the magnet to give access to the chamber, rather than being removed entirely. The battery grew to 2,300 mAh; TVape states up to 60 minutes of runtime, whilst retailer tests at lower levels report up to 90 minutes. Charging is via Micro-USB on the underside. The screen, O-ring, and mouthpiece can be removed for cleaning.

Five rapid clicks power it on; two clicks change the level: Green 170 °C, Blue 180 °C, Purple 190 °C, Red 210 °C. Holding the button for five seconds activates the boost, which raises each level by 5 °C. This gives the 721 a range of 170 to 215 °C, though without precise degree-by-degree selection and without a display. For most herbs, tests suggest the blue level is sufficient; Purple serves as a top-up at the end of the session. The Zeus Iceborn vapor cooler fits the mouthpiece and further cools the vapor.

Hot air flows through the chamber; the material does not come into contact with a hot wall. Tests attest to the 721 an unusually dense vapor production for its price range and a heat-up time of under a minute to the highest level. The anodized aluminum body is rubberised and remains only hand-warm even after two sessions, according to reviews. Comparisons with the Crafty by Storz & Bickel run through almost all reviews; the price difference was the reason for purchase, not the precision of the temperature control.

Retailers list remaining units of the 721 for around 110 Canadian dollars; it was the most affordable convection option of its time. The later Utillian 722 introduced a stainless steel chamber and levels up to 225 °C; the 723 switched to USB-C. Anyone finding a remaining unit today gets the proven base. The prices in the comparison come from remaining stock at individual shops and vary considerably as a result.