How to get a SIM card for Nha Trang — buy locally or order in advance?

For a local physical SIM, use an official Vietnamese carrier store rather than airport counters or informal shops. If you need service right away, you can stop at one on the taxi ride from the airport.

Tip: don't activate your eSIM at home in advance — doing so immediately starts the plan's day counter. Better to activate it right at the airport on arrival using the free Wi-Fi, so you don't lose any paid days.

If the eSIM hasn't activated in advance, you can do it at the airport using the free Wi-Fi. Also, for it to auto-activate on arrival, roaming needs to be turned on in your phone settings — otherwise it may not connect automatically. Activation behavior can differ by device: on Android the profile may appear even before departure, while on iPhone it may only show up after landing, even with the same eSIM.

You don't need a SIM card right at the airport — free Wi-Fi is available there, which is enough to call a taxi on arrival.

An alternative to buying a local SIM is Wi-Fi calling with your home SIM. Enable airplane mode, then turn on Wi-Fi and activate 'Wi-Fi Calling' in your phone settings. Calls work at your home rate with no roaming charges. One caveat: SMS messages don't arrive in airplane mode, so you'll need to temporarily disable it when waiting for bank verification codes.

A physical SIM can be ordered in advance through Tripcom. Activate it before your flight and you'll have connectivity the moment you land in Nha Trang — no need to search for a SIM counter at the airport.

An eSIM ordered via Wildberries (or similar online marketplaces) works great. Activate it at home before departure — it connects automatically once you land. You arrive ready to go without any hassle.

If you prefer a physical SIM and want to avoid hunting for one on arrival: order online via Tripcom and pick up the ready-to-use card at the airport upon landing. No need to find a carrier store.