Vietnam SIM at Hanoi Airport: Pickup Options vs eSIM

You just landed at Hanoi's Noi Bai airport and need internet immediately. Two options: walk to a SIM counter or install an eSIM before you fly. Here's how each works and which is better for your trip.
What to Expect at Noi Bai Airport
Noi Bai International Airport (HAN) is the main gateway to Hanoi. After clearing immigration and collecting your luggage, the arrival hall offers currency exchange counters, ATMs, and several mobile SIM card kiosks. The counters are located near the exit, clearly marked with carrier logos.
Dedicated carrier kiosks for Viettel, Vinaphone, and Mobifone operate in the arrival lobby, typically from 7 AM to midnight. Some counters may close earlier, especially for late-night flights. An eSIM purchased online avoids this timing limitation entirely. You will need to present your passport to buy a physical SIM; eSIM requires only an online purchase and a QR code — no passport needed at purchase.
Physical SIM Cards Available at the Airport
The three main carriers at the airport are Viettel (best rural coverage), Vinaphone (strong urban coverage plus a real phone number), and Mobifone (cheapest short-term plans). Typical physical SIM prices at Noi Bai: a 7-day tourist plan costs around 50,000–100,000 VND (roughly $2–$4 USD) for 1–3 GB of data. Higher data plans cost more. Prices are comparable to eSIM, but physical SIMs often offer less data for the same price.
Activation of a physical SIM takes 2–5 minutes — the counter staff will insert the SIM and confirm it works. In contrast, eSIM activation takes 30–60 seconds via a QR code. Most physical SIMs include a local phone number, which is useful for Grab (ride-hailing) and receiving SMS OTPs for bank or app verification. If you need a number for calls and texts, a physical SIM or an eSIM with a local number is essential.
eSIM: The Convenient Alternative
eSIMs from a local provider like simvietnam.telebox.vn use native Viettel or Vinaphone networks — same infrastructure as physical SIMs but without the plastic card. You buy online before your flight, receive a QR code by email within a minute, and install it in about 30 seconds using your phone’s settings (Settings > Cellular > Add eSIM on iPhone; Settings > Connections > SIM Manager on Samsung).
A Vinaphone eSIM includes a local phone number so you can receive calls and OTPs — crucial for Grab, bank verification, and hotel check-ins. A Viettel eSIM is data-only; choose Vinaphone if you need a number. International resellers like Airalo do not offer a local number. Pricing: 7-day 5GB/day Viettel eSIM = $9.90; 10-day Vinaphone = $11.90. No airport queue, available 24/7.
Physical SIM vs eSIM: Quick Comparison
Physical SIM: immediate upon arrival, includes a local number, can break or lose the card. You must locate the counter, present your passport, and pay cash or card. Best if your phone does not support eSIM (e.g., mainland China/Hong Kong/Macau iPhones have no eSIM hardware). Costs roughly $2–$5 for a basic 7-day plan with 3 GB.
eSIM: buy before departure, arrives instantly, no passport needed. Works with dual-SIM so you can keep your home number active. Slight setup steps may require Wi-Fi on landing, but you can install the eSIM before you fly while on Wi-Fi. Our Viettel eSIM with 5 GB/day for 7 days is $9.90 — more data but higher upfront cost. If you need a Vietnamese phone number, get a physical SIM or our Vinaphone eSIM. If data-only is fine, the Viettel eSIM is excellent.
How to Install an eSIM for Vietnam
Step 1: Purchase an eSIM from a local dealer (choose Viettel or Vinaphone). Step 2: The QR code arrives via email within 1 minute. Do not install until you have stable Wi-Fi — airport, hotel, or home before your trip. Step 3: On iPhone: Settings > Cellular > Add eSIM > Scan QR code. On Samsung: Settings > Connections > SIM Manager > Add eSIM.
Step 4: After scanning, label the eSIM as 'Travel' or 'Vietnam'. Set your default data line to the new eSIM. Keep your home line on for calls and SMS. If it doesn't work: ensure your device is eSIM compatible (iPhone XS+/SE2+, Galaxy S20+/Fold/Flip, Pixel 3+). Check the APN setting — set to 'internet' for Viettel. Restart your phone. Contact support if problems persist.
FAQ
Can I buy a physical SIM card at Hanoi airport?
Yes, you can buy a physical SIM card at Noi Bai airport. Viettel, Vinaphone, and Mobifone have counters in the arrival hall. They are typically open from 7 AM to midnight, but may close earlier for late flights.
How much does a SIM card cost at Noi Bai airport?
A basic 7-day tourist SIM with 1–3 GB of data costs around 50,000–100,000 VND (about $2–$4 USD). Higher data plans cost more. Prices are similar to eSIMs but often offer less data for the same price.
Do I need a passport to buy a SIM at the airport?
Yes, you must present your passport to purchase a physical SIM card at the airport. This is a legal requirement for registration. With an eSIM purchased online, no passport is needed at purchase.
What is the advantage of buying an eSIM before arriving?
Buying an eSIM before arrival means you have connectivity instantly after landing — no queues, no passport checks, and no risk of a closed counter. You can install it at home or in the airport Wi-Fi. eSIMs also offer more data per dollar in many plans.
Can I keep my home phone number while using a Vietnam SIM or eSIM?
Yes. With a physical SIM you typically remove your home SIM, but you could use a dual-SIM phone. With an eSIM, your home SIM remains in the slot and can be kept active for calls and SMS while using the Vietnam eSIM for data. Most travelers set the eSIM as the default data line and keep their home line for calls.