A disposable vape, sometimes called an all-in-one or AIO, combines the battery and the oil tank in a single device. There is nothing to screw together. You just take it out of the package and use it until the oil runs out, then dispose of it properly. Some models include a USB port so you can recharge the battery if it dies before the oil is finished.
Disposables are popular for travel, for trying a new product without buying a battery, or for anyone who wants the simplest option. Many are draw-activated, meaning you just inhale, while others have a button.
Inside, the oil is the same kinds you find in carts: distillate with added terpenes, live resin, or live rosin. The label should list the oil type, total THC and size, usually 0.5 g to 1 g or more.
The trade-off is that you cannot adjust the temperature on most disposables, and they create more waste than a reusable battery with carts. Many communities ask that vapes go to e-waste or battery recycling rather than household trash.
Take short puffs at first. Check the label and COA for potency and contaminant screening.