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SIM Cards & Connectivity in Vietnam: what actually matters to know

Short answer
Purchase a local physical SIM card from official mobile carrier stores like Viettel for the most cost-effective and reliable connectivity. Alternatively, use eSIMs for convenience, but avoid airport kiosks if you seek better longevity and lower prices.

From real experience

SIM cards can be purchased in Vietnam at various locations, including convenience stores, official mobile carrier shops, and potentially at the airport upon arrival.
It is advisable to compare plans and prices to find the most suitable option for your needs.
✓ 3 reports from chats
A 7-day SIM card with 50 GB of data costs approximately 190,000 VND and requires cash payment.
SIM cards can be purchased at the airport, but prices there might be higher. Tourist SIM cards are available without a passport and offer unlimited internet for around 200,000 VND. For longer stays or eSIM options, it's possible to purchase a SIM card at a salon with a passport.
✓ 1 report from chats
When purchasing an eSIM for Vietnam, consider plans that offer robust data packages, such as 'Vietnam 5G eSIM' with options for daily or total data limits.
Ensure the plan provides reliable internet connectivity for services like ChatGPT. Pre-paid packages with a specified data volume are generally suitable for short-term travel.
✓ 1 report from chats
Purchasing SIM cards locally in Vietnam at official mobile provider stores (e.g., Viettel) is cheaper than pre-ordering via Klook or online travel sites.
Wi-Fi is widely available in hotels, cafes, and airports. Ensure to physically remove and dispose of the SIM card before leaving the country if the contract is prepaid.
✓ 1 report from chats
While Russian SIM cards (MTS, Beeline) may work in Vietnam, roaming charges can be expensive.
It is recommended to purchase a local SIM card upon arrival for cost-effectiveness. For urgent access or SMS verification, consider using Wi-Fi or a local SIM. Local SIM cards are inexpensive and require a passport for purchase.
✓ 1 report from chats
Explain how to purchase Vietnamese SIM cards and top-up scratch cards (e-vouchers) for mobile phone plans.
Clarify the process of using these cards for payment within apps or for topping up accounts, and mention that local stores usually sell them.
✓ 1 report from chats
Connectivity options in Vietnam: 1. e-SIM (via Trip.com, approx 300-600 RUB for 5GB/15 days) for convenience.
2. Local physical SIM cards (Viettel recommended, approx 150,000 VND) for higher stability and cost-efficiency.
✓ 1 report from chats
Inquire about the cost and options for Vietnamese SIM cards, specifically for a 3-month duration with a good data allowance.
Viettel is mentioned as a potential provider. Compare this to roaming services for ease of use.
✓ 1 report from chats
SIM cards purchased at Vietnamese airports often have limited lifespan or are pre-owned.
For reliable service, visit official carrier stores (e.g., Viettel) within the city.
✓ 1 report from chats

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