Juul is inferior to BLU. It really ticks me off at the price. If you have lost the crapy little charger device, then you have to buy a replacement for a 50 cent item which will be at least $5.00. Ok fine, my juul is retired to my junk box and I will use only BLU. I would think that a company that rips off the public as large as juul could afford to help users of their product could and offer replacements at a fair price. So that being said, by juul. Your battery life really sucks too.