Roaming

Roaming means your home carrier’s SIM connects through a foreign partner network. Billing is often per day, per MB, or under a fair-use cap that throttles quickly. Business plans sometimes include roaming; consumer prepaid lines often do not. Travelers switch to a local or travel eSIM to control cost and speed. You keep your home SIM for SMS or authentication while data goes through the eSIM. Check whether your carrier locks the phone before buying any eSIM. Simbo packages replace open-ended roaming with prepaid ILS prices for a destination or region. Compare the total trip cost — not just the first day — and confirm hotspot rules if you will share data with a laptop.