Local SIM activation and managing data effectively — any current tips?

SIM cards are available at the airport and in towns. Dialog generally has the best coverage in most tourist areas. Activation can sometimes require ID and a local address, though processes vary. Many hotels or guesthouses can help with activation or recommend a nearby shop. Data packages are generally affordable and generous. Having a dual-SIM phone or using eSIM for your home number while using a local physical SIM for data works well for many people. Monitoring usage and buying top-ups as needed prevents unexpected costs. Some travelers buy a small data package on arrival and add more as needed. Local shops or your accommodation can advise on the best current packages for your needs.