Where can you buy a SIM card in Hanoi? You have three main options: visit an official mobile network store in the city, buy a physical SIM at Noi Bai Airport, or purchase a Vietnam eSIM online before your flight.
If you’re staying near Hanoi’s Old Quarter, you can find mobile network service locations in the Hoan Kiem area. If your phone supports eSIM, you can also skip the shops and prepare your mobile data before arriving in Vietnam.
Where to Buy a SIM Card in Hanoi City
Official carrier service centers are a good starting point if you need a physical Vietnamese SIM card. Viettel, MobiFone and VinaPhone operate service locations across Hanoi where customers can inquire about prepaid packages and SIM registration.
Official SIM Card Stores Near Hanoi Old Quarter
Here are the options worth checking if you’re staying around Hoan Kiem Lake or the Old Quarter.
| Network | Location | Store Information |
|---|---|---|
| Viettel | Service locations across Hanoi | Find Viettel Stores ↗ |
| MobiFone | Service locations in central Hanoi and other districts | Find MobiFone Stores ↗ |
| VinaPhone | 75A/B Dinh Tien Hoang Street, Hoan Kiem, Hanoi | Official VinaPhone Store Listing ↗ |
Before visiting, check the operator’s current store information and confirm that the branch handles new prepaid SIM registration for foreign visitors. Not every retail location offers the same services.
If you’re staying outside the Old Quarter, use the network’s store finder to locate a service center closer to your hotel.
What to Check Before Leaving a SIM Store
- Registration: Make sure your SIM is registered using valid identification.
- Data allowance: Check whether the plan includes daily data or a fixed total amount.
- Validity: Confirm that the package covers your full trip.
- Calls and SMS: Ask whether the SIM includes a Vietnamese phone number and any calling or messaging benefits.
- Activation: Have the staff activate the SIM and test mobile data before you leave.
Buying from an official service center is especially useful if you prefer in-person assistance or need a physical SIM.
Where to Buy a SIM Card at Noi Bai Airport
International travelers arriving at Noi Bai International Airport (HAN) use Terminal 2 (T2). The international arrivals area is located on the first floor.
After immigration, baggage collection and customs, look for SIM vendors in the public arrivals area. Counter availability, opening hours and available packages may vary.
Before paying, make sure you understand:
- Which network the SIM uses: Viettel, MobiFone or VinaPhone.
- How much data is included and whether there is a daily limit.
- How long the package remains valid.
- Whether a Vietnamese phone number, calls or SMS are included.
- Whether the SIM has been properly registered and activated.
Airport SIMs are convenient if you need a physical card immediately after landing. However, your choice will depend on the counters and packages available at that time.
For travelers with unlocked, eSIM-compatible phones, buying an eSIM before departure can be more convenient than finding a SIM counter after a long flight.
Airport SIM vs City Store vs Online eSIM
All three options can work well. The right choice depends on your phone, travel plans and whether you need a physical SIM.
| Option | Main Advantage | Best For |
|---|---|---|
| Airport SIM | Purchase a physical SIM after arrival | Travelers needing a physical SIM immediately |
| City Store | Get in-person assistance and compare packages | Visitors who prefer help with registration and setup |
| Online eSIM | Buy and install before traveling without swapping SIM cards | Travelers with unlocked, eSIM-compatible phones |
Our recommendation: If your phone supports eSIM and you mainly need mobile data, purchasing online before your flight is usually the simplest option. If you need a physical SIM or prefer face-to-face assistance, visiting an official city service center may be more suitable.
Do You Need a Passport to Buy a SIM Card in Hanoi?
Foreign tourists should bring a valid passport when purchasing and registering a new Vietnamese mobile SIM.
Under Article 17 of Vietnam’s Decree 163/2024/ND-CP, foreign nationals registering a mobile subscription may use an eligible passport or an electronic identity account recognized under Vietnamese law.
For most international tourists, bringing a passport is the most practical approach. The operator may also need to verify your identity during registration.
Avoid purchasing an unregistered SIM or one registered under an unrelated person’s identity.
Make sure your phone is also carrier-unlocked. A carrier-locked device may not accept a Vietnamese physical SIM or travel eSIM.
Buy a Vietnam eSIM Before Arriving in Hanoi
If your phone supports eSIM, you can prepare your mobile connection without visiting a physical store.
GoVnSIM offers Vietnam travel eSIMs that you can order online and receive by email. Install your eSIM over Wi-Fi before your flight, then follow the supplied instructions to connect to the local network after arriving in Vietnam.
Which GoVnSIM eSIM Should You Choose?
The right package depends on your destination, daily data usage and whether you need a Vietnamese phone number.
- Viettel eSIM – for multi-city travel and wider coverage:
Includes 5GB of data per day on Viettel’s network. This is a data-only package with hotspot support, suitable for travelers visiting Hanoi and other regions of Vietnam.
View Viettel eSIM Plans → - Vietnam eSIM with Phone Number – for calls and SMS:
Choose from MobiFone and VinaPhone packages that include a Vietnamese phone number. Data allowances, outgoing calls and SMS benefits depend on the selected plan.
View eSIM Plans with a Local Number → - VinaPhone Unlimited Data – for heavier daily use:
Includes 6GB of full-speed data per day, followed by continued access at reduced speed. A Vietnamese number is included for incoming calls and SMS, but hotspot sharing is not supported.
View Unlimited Data eSIM →
Before ordering, confirm that your device supports eSIM and is carrier-unlocked. You can check our eSIM compatibility guide and installation instructions.
Get Connected Before You Land in Hanoi
Choose a Vietnam eSIM, receive your QR code by email and prepare your mobile data before departure.
What if Your Phone Doesn’t Support eSIM?
If your phone is unlocked but doesn’t support eSIM, you can purchase a physical SIM from an official network store or an available airport counter.
GoVnSIM also offers physical SIM hotel delivery by arrangement. If you’re staying at a hotel in Hanoi, contact our team before arriving to confirm the available packages, delivery timing and whether your hotel can receive the SIM.
Frequently Asked Questions
Can I Keep My WhatsApp Number When Using a Vietnam SIM?
Yes. You can generally continue using your existing WhatsApp account with a Vietnamese SIM or eSIM for mobile data. You don’t need a new Vietnamese number just to use WhatsApp, Google Maps or most travel apps.
What if I Arrive at Noi Bai Airport Late at Night?
SIM counter operating hours may vary, so don’t assume a counter will be open when you arrive. If your phone supports eSIM, installing one before your flight can help you connect after landing. Otherwise, plan to purchase a physical SIM in the city or arrange one in advance.
Can I Install a Vietnam eSIM Before My Flight?
Yes. You can install a GoVnSIM eSIM over Wi-Fi before departure, then connect according to your package’s activation instructions after arriving in Vietnam.
Keep the installed eSIM profile and contact support before deleting it, as the QR code may not be reusable.
Where Should You Buy Your SIM in Hanoi?
If you need a physical SIM and prefer assistance in person, an official mobile network service center is a good choice. Airport SIM counters can be convenient when you want a physical card immediately after landing.
For travelers with unlocked, eSIM-compatible phones, buying online before your flight is often the easiest way to arrive with mobile data ready for maps, messaging and travel apps.