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

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.