Vietnam Guide Saved

SIM cards and Wi-Fi

Buy a tourist SIM at the airport or use an eSIM if your phone supports it. You want data before you reach the taxi line, because Grab needs it.

Verified 19 Oct 2026.

At the airport

Viettel, Mobifone, and Vinaphone booths in international arrivals sell tourist SIMs. Bring your passport. Compare the data amount, not the box.

Cafe Wi-Fi is widespread and uneven. Do not plan to navigate a new city on a single cafe login.

Questions

Is an eSIM enough?
Yes if your phone accepts one and you install it before you land. A physical SIM is the fallback.