“blu” is much easier. The cartridges are already filled, use and pitch. There is a case that takes a charge and a place inside to put a battery so it is charged when you need it and holes inside to store extra cartridges. You can take that on a trip and actually be able to change cigarettes, stick the battery drained one in the charger hole and it charges to be ready when you need it. With the 100 size, a cartridge lasts as long as one and a half pack of cigs. That is much better than the other one I had, they were empty more than they were filled.
There is one feature of the carry/charger box (it's a little larger than a regular pack of cigarettes), that I don't use. You can set it to start blinking on and off if there is another blu cigarette within so many feet of you. If you have that feature on, any person that has their blu box feature on, can find you. I guess you are supposed to talk to this person - no, thanks. It also blinks when it comes close to where blu cigarettes are sold. I never turn that blink feature on. Don't want to know where some one else is who is smoking one - man, that is a dumb feature.
I vape with the Ego C pass-thru. You can charge it in the wall socket or any USB device. One charge lasts all day. I fill it with my fave tobacco flavors. Found a real good Cuban cigar flavor. Been off tobacco for a year and a half.
I’m not sure what brand he uses but our son has been using an ecig now for about a year. He gets the liquid stuff in the mail. Once or twice he’s run out before the refill arrives and he resorts to a “real” cigarette and he hates it. He has also used the little tic tacs to tide him over. It’s worked for him. Nicotine addiction is supposedly harder to kick than heroin. Proud of him. For a bunch of other reasons but this is really helping his health.