Bringing two phones when traveling in 2026 is one of the most effective "safety nets" for modern international transit. Your primary phone is your lifeblood—containing your boarding passes, hotel reservations, and digital wallet—making it a high-value target for theft or a catastrophic point of failure if dropped or lost. A backup phone (even an older, wiped model) ensures you are never stranded without access to 2FA (Two-Factor Authentication) codes, bank apps, or maps. This second device acts as a "decoy" in high-crime areas or can be dedicated to a local SIM card to preserve your main phone's battery and expensive roaming data. Furthermore, if you are using your phone for heavy navigation and photography, a second device provides a vital power backup if your primary battery dies mid-adventure. In 2026, where "digital identity" is mandatory for everything from train tickets to entry visas, losing your only connection to the internet can turn a minor inconvenience into a logistical nightmare, making the small space taken by a spare phone a worthy investment in peace of mind.