You can take almost all common portable electronic devices on a plane, but they are subject to strict lithium battery regulations. Devices like laptops, smartphones, tablets, cameras, and handheld gaming consoles are allowed in both carry-on and checked luggage; however, the FAA and global authorities strongly recommend keeping them in your carry-on to monitor for potential fire risks. Spare lithium batteries and power banks must be in your carry-on and are strictly prohibited from checked baggage. In 2026, most airlines limit you to batteries with a capacity under 100 Watt-hours (Wh); anything between 100Wh and 160Wh requires airline approval. Small appliances like hair dryers, electric shavers, and curling irons are generally allowed in both types of bags. However, devices with heating elements must be packed to prevent accidental activation. "Smart luggage" with non-removable lithium batteries is completely banned. Always ensure your devices are charged, as security officers may occasionally ask you to power them on to prove they are functional.