International roaming plans offered by home mobile providers can be expensive and sometimes limited in data and call allowances. Purchasing a local SIM card upon arrival often provides better rates for calls, texts, and data, but your phone must be unlocked and compatible with local networks. Portable Wi-Fi routers can supply internet access for multiple devices simultaneously, useful for groups. Download offline maps and travel tools ahead of time to minimize connectivity dependency. Securely store important contacts and be aware of emergency numbers. Staying connected aids navigation, communication, and safety during travels.