Lastest update July 5, 2022
Utillain 421 Review
The U421 features adjustable airflow and has a wider range of preset temp settings which you don't usually see on similarly-priced vapes. It's simple and user-friendly since it has a single-button interface and has a LED screen that displays the temp settings and battery life. For a weed vape that's under $100, this is a fine choice to start vaping or a secondary device for traveling (if you already own a desktop vaporizer).