On this page
- What Changed Since 2024
- How SIM Registration Works for Tourists
- Viettel: The Pick for Coverage
- Mobifone: The Pick for Cities and Coast
- Vinaphone: The Pick for Data Value and Islands
- eSIM or Physical SIM?
- 2026 Budget Reality
- Top-Up and Balance Codes
- Do You Even Need a SIM?
- Common Mistakes to Avoid
- Frequently Asked Questions
You land at the airport, your phone has no signal, and the Grab driver is waiting. In 2026, that moment is more stressful than it used to be, because Vietnam enforces SIM registration strictly. A SIM bought from the wrong place, or registered incorrectly, can be deactivated without warning. Three providers dominate the market: Viettel, Mobifone and Vinaphone. All three sell prepaid SIMs and eSIMs to tourists, but they suit different trips. This guide shows which one fits yours, what it costs, and how to avoid the registration traps.
What Changed Since 2024
Three shifts matter for visitors in 2026.
- Stricter registration. Since 2024, tourists must register SIM cards with valid identification. The rules are now fully enforced.
- eSIM is mainstream. All three major providers now offer eSIMs. In 2024 they were hard to find, and now you can arrive with a compatible phone and skip the plastic card.
- Bigger 5G footprints. Each provider has expanded 5G, mostly in urban centres. Mobile data is now cheap enough that package size matters more than call minutes.
How SIM Registration Works for Tourists
Registration is the step that trips people up, so it helps to know exactly what happens at the counter.
What you need
- A valid passport.
- A valid Vietnamese visa or visa exemption stamp.
- Your face. Some vendors will also ask for a photo of you.
What the vendor does
The staff member scans your passport and visa, takes your photo and enters your details into the network system. This usually takes 5-10 minutes. Then they activate the SIM and install it in your phone.
Where to buy
- Airport kiosks. Viettel, Mobifone and Vinaphone all have official kiosks at international airports, including Tan Son Nhat (SGN), Noi Bai (HAN) and Da Nang (DAD). This is the most convenient option, though prices can be slightly higher than in city stores.
- Official brand stores. You will find them in most major cities and towns. They offer the most reliable registration and support.
- Convenience stores and small shops. Places like Circle K, VinMart and independent mobile shops may sell SIMs. Skip them. Unregistered or incorrectly registered SIMs are the main risk, so stick to airport kiosks or brand stores.
Viettel: The Pick for Coverage
Viettel is Vietnam’s largest telecommunications provider. It is state-owned, under the Ministry of Defence. Its main selling point is coverage, including rural and remote areas. Website: https://viettel.vn/. App: MyViettel (iOS and Android).
Its signal holds up in mountainous regions, national parks and along highways. If you are planning a motorbike loop through the northern mountains, or a long journey where you will be far from cities, Viettel is the safest bet. It is also the provider that generally leads in accessible tourist eSIM packages.
Example tourist packages (estimated for 2026)
- Traveler Basic (7 days): 5 GB high-speed data, unlimited on-net calls, 50 mins off-net calls, 50 SMS. 100,000 VND (approx. 4.00 USD).
- Traveler Standard (15 days): 15 GB high-speed data, unlimited on-net calls, 100 mins off-net calls, 100 SMS. 200,000 VND (approx. 8.00 USD).
- Traveler Premium (30 days): 30 GB high-speed data, unlimited on-net calls, 200 mins off-net calls, 200 SMS. 300,000 VND (approx. 12.00 USD).
Packages often include social media data (Facebook, TikTok, YouTube) that does not count against the main data cap, but the exact exemptions can vary by package, so ask the staff what yours covers.
The trade-off: prices are slightly higher than the other two. You are paying for reliability, and for trips beyond the cities that is usually money well spent.
Mobifone: The Pick for Cities and Coast
Mobifone is strong in urban areas and coastal regions, with competitive data packages and good customer service. Website: https://mobifone.vn/. App: MyMobifone (iOS and Android).
Coverage is excellent in major cities, tourist hubs and coastal areas. It is generally reliable but may be slightly less extensive than Viettel in very remote locations. If your trip is a classic route of Hanoi, Da Nang, Hoi An and Ho Chi Minh City, you will rarely feel the difference. Mobifone has also improved its 5G rollout in key urban centres.
Example tourist packages (estimated for 2026)
- Tourist Connect (7 days): 6 GB high-speed data, 50 mins on-net calls, 20 mins off-net calls. 90,000 VND (approx. 3.60 USD).
- Tourist Max (15 days): 18 GB high-speed data, 100 mins on-net calls, 40 mins off-net calls. 180,000 VND (approx. 7.20 USD).
- Tourist Unlimited (30 days): 30 GB high-speed data (daily 1 GB/day or similar), unlimited on-net calls, 60 mins off-net calls. 280,000 VND (approx. 11.20 USD).
Mobifone often runs promotions for new SIM activations, such as bonus data or free calls to specific numbers. These change frequently, so ask what is on offer the day you buy.
Vinaphone: The Pick for Data Value and Islands
Vinaphone is part of the VNPT group. It is known for good urban coverage, strong island coverage and competitive pricing, especially for data. Website: https://vinaphone.com.vn/. App: MyVNPT (iOS and Android).
If you are heading to Phu Quoc or Con Dao, Vinaphone is the standout choice, because its coverage is particularly good on many Vietnamese islands. It has also strengthened 5G in urban centres and tourist-heavy islands, and its packages now give more data for the price.
Example tourist packages (estimated for 2026)
- Tourist Data (7 days): 8 GB high-speed data, 30 mins on-net calls. 85,000 VND (approx. 3.40 USD).
- Tourist Plus (15 days): 20 GB high-speed data, 60 mins on-net calls, 30 mins off-net calls. 170,000 VND (approx. 6.80 USD).
- Tourist Super Data (30 days): 40 GB high-speed data (daily 1.5 GB/day or similar), 100 mins on-net calls, 50 mins off-net calls. 260,000 VND (approx. 10.40 USD).
Vinaphone often adds bonus data for specific apps, or unlimited low-speed data after the high-speed cap runs out. Details can change, so confirm at the counter.
eSIM or Physical SIM?
An eSIM removes the tiny card and the tiny pin, and you can set it up with a QR code. The process is simple: present your documents, buy a plan, scan the QR code and activate it on your phone. Your device must be eSIM-compatible and unlocked.
Here is a practical way to choose:
- Choose eSIM if your phone supports it and you want to be online the moment you finish at the counter. Viettel is the easiest starting point.
- Choose a physical SIM if your phone is older, or if you want a staff member to physically install and test everything while you watch.
With Mobifone and Vinaphone, eSIMs are mainly handled in official stores and service centres. Do not expect to buy one from a street vendor.
2026 Budget Reality
Prices below use the draft’s simplified rate of 1 USD = 25,000 VND. The actual rate is closer to 25,200 VND, so your real cost may differ very slightly. All packages are estimated 2026 examples, and prices at airport kiosks can be a little higher.
Budget (7-day plans)
- Vinaphone Tourist Data: 85,000 VND (approx. 3.40 USD), 8 GB
- Mobifone Tourist Connect: 90,000 VND (approx. 3.60 USD), 6 GB
- Viettel Traveler Basic: 100,000 VND (approx. 4.00 USD), 5 GB
Mid-range (15-day plans)
- Vinaphone Tourist Plus: 170,000 VND (approx. 6.80 USD), 20 GB
- Mobifone Tourist Max: 180,000 VND (approx. 7.20 USD), 18 GB
- Viettel Traveler Standard: 200,000 VND (approx. 8.00 USD), 15 GB
Comfortable (30-day plans)
- Vinaphone Tourist Super Data: 260,000 VND (approx. 10.40 USD), 40 GB
- Mobifone Tourist Unlimited: 280,000 VND (approx. 11.20 USD), 30 GB
- Viettel Traveler Premium: 300,000 VND (approx. 12.00 USD), 30 GB
The pattern is clear. Vinaphone is the cheapest and gives the most data. Viettel costs the most per plan, but you are buying the widest coverage. Mobifone sits in the middle, and its promotions can tip the balance.
Top-Up and Balance Codes
Every provider has an app, and the app is the easiest way to manage your account, check balances, top up and buy new data packages. If you prefer dialling, here are the codes.
- Viettel: top up with *100*CARD_NUMBER#. Check the main balance with *101# and the data balance with *102#.
- Mobifone: top up with *100*CARD_NUMBER#. Check the main balance with *101# and the data balance with *090*5#.
- Vinaphone: top up with *100*CARD_NUMBER#. Check the main balance with *101# and package details with *123#.
Scratch cards are sold at brand stores, convenience stores and many small shops. Electronic top-up is available at the providers’ own stores, and through banking apps if you have a Vietnamese bank account, which most tourists will not.
Do You Even Need a SIM?
Vietnam has extensive WiFi. Most hotels, guesthouses, cafes and restaurants offer it free, and so do some public spaces. You can sit in a Hanoi cafe with a cup of strong coffee, the Old Quarter’s motorbikes humming outside, and your connection will be perfectly fine.
The problem starts when you leave. Navigating a new city on foot, calling a ride, or travelling through areas with limited public WiFi all need continuous data. For under 12 USD for a month, a local SIM or eSIM is cheap insurance. Download offline maps (for example in Google Maps) as a backup for spots with spotty reception.
Common Mistakes to Avoid
- Forgetting your documents. You need your passport and a valid visa or visa exemption stamp. Photos on your phone will not be enough for registration, so carry the real documents to the counter.
- Arriving with a locked phone. A locked phone will not accept a local SIM or eSIM. Unlock it before you fly.
- Skipping the test. Make a call and load a web page before you leave the store. Fixing problems later is much harder.
- Choosing by price alone. The cheapest plan is no bargain if you lose signal in the mountains. Match the provider to your route: Viettel for remote areas, Mobifone for cities and coast, Vinaphone for urban exploring and islands.
- Assuming promotions are fixed. Social media data exemptions, bonus data and free-call offers vary by package and change often. Ask what your plan includes.
- Not asking for help. Staff at official stores and airport kiosks often speak basic English and can help you choose a package and finish activation.
Frequently Asked Questions
Do tourists need to register a SIM card in Vietnam?
Yes. Since 2024, registration rules have been stricter, and tourists must register with a valid passport and a valid Vietnamese visa or visa exemption stamp. Staff scan your documents, take your photo, and enter your details, usually in 5-10 minutes. Unregistered SIMs may be deactivated without warning.
Which Vietnamese mobile provider has the best coverage?
Viettel has the best coverage in Vietnam, with strong signals in mountainous regions, national parks, and along highways. Mobifone is excellent in cities, tourist hubs, and coastal areas, while Vinaphone is particularly good on islands such as Phu Quoc and Con Dao. Your route should decide your choice.
Can I use an eSIM in Vietnam?
Yes. All three providers offer eSIMs, and Viettel generally leads in accessible tourist packages. Your phone must be eSIM-compatible and unlocked. Mobifone and Vinaphone mainly issue eSIMs through official stores and customer service centres, where you show your documents and receive a QR code to scan.
How much does a tourist SIM cost in Vietnam in 2026?
Estimated 2026 prices for example tourist packages run from 85,000 VND (about 3.40 USD) for a 7-day Vinaphone plan to 300,000 VND (about 12.00 USD) for a 30-day Viettel plan. Prices at airport kiosks may be slightly higher than in city stores. Packages change, so confirm at the counter.
Do I need a SIM if my hotel has free WiFi?
Free WiFi is common in hotels, guesthouses, cafes, and restaurants, but it will not help while you are walking, riding, or in areas with limited public WiFi. A local SIM or eSIM gives continuous connectivity for navigation and communication, so most travellers still find one worthwhile.
📷 Featured image by Michael Lock on Unsplash.