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SIM Cards & Mobile Data Plans in Vietnam: real experience from chats

Short answer
You can purchase local SIM cards like Viettel or Mobifone at airport kiosks or city-center operator offices. Visiting official branches with your passport typically offers better rates and on-site installation for daily data packages.

From real experience

SIM cards can be purchased at the airport upon arrival in Vietnam.
While purchasing at the airport is convenient, prices might be higher than elsewhere. Tourist SIM cards offering unlimited internet are available on street corners for around 200,000 VND and can be obtained without a passport. For more options, including eSIMs and physical SIM cards, consider visiting a salon and presenting your passport.
✓ 1 report from chats
Viettel SIM cards are available in Vietnam.
Prices and data packages can vary between different Viettel offices. It's recommended to check reviews and compare prices at different branches to find the best deal. One user reported getting a plan with 6GB of data per day for about 180,000 VND per month in the center of the city near a roundabout.
✓ 1 report from chats
Local SIM cards (Viettel/Mobifone) in Nha Trang cost approximately 150,000–400,000 VND for a 2-week package, typically offering 5-10 GB of data per day.
Installation is usually provided on-site by vendors.
✓ 1 report from chats
SIM cards in Vietnam can be easily purchased outside the airport at operator offices, particularly Viettel branches, which are widely available.
Searching for 'Viettel' on Google Maps will direct you to the nearest location. Payment options may include QR codes, and for Russian cards, receiving cash from VRB ATMs (converted to VND) is possible.
✓ 1 report from chats

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