Airports and border crossings change the game. If you're flying, you'll need to pack your device in your carry-on, and security might ask about it. Draw-activated hardware tends to look more like a tech gadget, which can be less conspicuous. Button-activated devices with screens and multiple buttons can invite more questions.

Also, consider the battery. Draw-activated devices often have smaller batteries because they're designed for portability, so you might need to charge them more often on a long trip. Button-activated models typically have larger batteries and may support USB-C fast charging, which is a plus if you're always on the move.

Another travel tip: keep your cartridge separate from the device when flying. Pressure changes can cause leaks, and that's true for both types. Store them in a zip-top bag to avoid mess.