Best Data Plans for Tourists in Vietnam: Stay Connected on a Budget

Vietnam is one of the cheapest places in the world to get a mobile data plan, yet every year thousands of tourists still arrive at the airport, fumble through roaming charges for two days, and spend far more than they needed to. In 2026, stricter SIM registration rules mean the process is slightly more formal than it used to be — no more buying an anonymous SIM from a street stall — but the good news is that if you follow the right steps, you can walk out of the arrivals hall with a working local number and 50GB+ of data for under 300,000 VND (about 12 USD). This guide tells you exactly how to do that.

Vietnam’s Three Major Mobile Networks

Before you choose a plan, you need to understand who is actually providing the service. Vietnam’s mobile market is dominated by three state-linked operators, and the differences between them matter depending on where you plan to travel.

• Viettel — The largest operator in the country. Viettel’s signal reaches deep into rural provinces, mountain regions like Ha Giang, and remote coastal areas that the other two networks barely touch. If you are planning anything beyond the main tourist trail, Viettel is the safest choice. Official website: viettel.vn. App: My Viettel.
• Mobifone — The second-largest network, with strong performance in cities and popular tourist destinations like Hoi An, Da Lat, and Phu Quoc. Plans are competitive and the app is user-friendly. Official website: mobifone.vn. App: My Mobifone.
• Vinaphone — Operated under VNPT, the national telecommunications group. Solid urban coverage and reliable service, though slightly behind Viettel in rural reach. Official website: vinaphone.vn. App: My VNPT or My Vinaphone.

All three networks now offer 4G nationwide and expanding 5G in major cities. For most tourists sticking to Hanoi, Ho Chi Minh City, Da Nang, Hoi An, and the popular central and southern destinations, any of the three will serve you well. For anyone heading off the beaten track, go with Viettel.

Buying a Physical SIM Card in Vietnam

Getting a physical SIM card is still the most popular option for tourists, and the process is straightforward as long as you come prepared.

Where to Buy

• Airport kiosks — Viettel, Mobifone, and Vinaphone all have counters inside the arrivals halls at Tan Son Nhat (Ho Chi Minh City – SGN), Noi Bai (Hanoi – HAN), and Da Nang (DAD). Prices here are marginally higher than in the city, but you save time and avoid roaming charges from the moment you land. Wait times are typically 5–10 minutes.



• Official operator stores — These offer the widest range of plans at the best prices. Look for signs reading “Cửa hàng Viettel,” “Điểm giao dịch Mobifone,” or “Trung tâm Vinaphone.” Staff at official stores generally have basic English.
• Convenience stores and phone shops — Circle K and FamilyMart branches sell SIM cards, but for tourist registration they are not the most reliable choice. Stick to official outlets.

What You Need to Bring

Since Decree 49/2017/ND-CP came into effect, every SIM card sold in Vietnam must be registered to an individual identity. Enforcement has tightened significantly since 2024. In 2026, the requirements at official points of sale are:

• Your original passport — not a photocopy, not a photo on your phone. The physical document.
• A photo taken by the vendor at the point of sale.
• Potentially a fingerprint scan or facial recognition check at official stores and airport kiosks. This takes an extra 1–2 minutes and is standard practice now.

Step-by-Step at the Counter

1. Approach a Viettel, Mobifone, or Vinaphone counter and say you want a tourist SIM or data SIM.
2. Look at their displayed plans or ask for a brochure and pick the one that suits your trip length.
3. Hand over your passport. The staff will scan it, take your photo, and complete registration.
4. Pay in cash or by card in VND.
5. The staff will insert the SIM, activate it, and confirm it is connected. Test it before you walk away — load a webpage or ping Google Maps right there at the counter.

eSIM Options for Vietnam

If your phone supports eSIM — and most flagship smartphones released after 2021 do — you have a genuinely convenient alternative to a physical SIM. By 2026, all three major operators have robust eSIM offerings for tourists, and the registration process can be completed entirely online before you board your flight.

Getting an eSIM From a Vietnamese Operator

1. Visit the eSIM or Tourist eSIM section on viettel.vn, mobifone.vn, or vinaphone.vn.
2. Select your plan and upload a scan of your passport and a selfie for identity verification.



3. Pay with an international credit or debit card.
4. Receive a QR code by email.
5. On your phone, go to Settings → Cellular/Mobile Data → Add Data Plan, scan the QR code, and follow the prompts.
6. Make sure data roaming is switched off for your home SIM and on for the new eSIM.

Third-Party eSIM Providers

Global platforms like Airalo, Holafly, and GigSky sell Vietnam-specific eSIMs. These are typically more expensive than going direct with a local operator, but they skip the identity verification step in most cases and can be activated minutes after purchase. They are a good backup if you want connectivity the moment you land and do not want to queue at an airport counter.

The main advantage of any eSIM is that you keep your home SIM active in the background, so you can still receive calls and SMS from your home number while browsing on the Vietnamese data plan.

2026 Data Plans Compared

All prices below use an exchange rate of 25,000 VND to 1 USD, which reflects the 2026 rate. Plans listed are tourist-oriented packages and commonly used prepaid options.

Viettel

• Hello Vietnam 30-day: 60GB (2GB/day at full speed, then throttled). Unlimited local Viettel calls under 20 minutes, 50 SMS. 280,000 VND (~11.20 USD).
• Tourist Connect 15-day: 25GB total, 30 local minutes. 160,000 VND (~6.40 USD).
• ST10K Daily: 2GB/day. 10,000 VND/day (~0.40 USD). Activate by SMS “ST10K” to 191.
• ST30K Weekly: 7GB/week. 30,000 VND (~1.20 USD). Activate by SMS “ST30K” to 191.
• V120N Monthly: 4GB/day, unlimited Viettel calls under 20 minutes, 50 SMS. 120,000 VND (~4.80 USD). Activate by SMS “V120N” to 191.

Mobifone

• Mobi Tourist 30-day: 50GB total, 100 local minutes. 240,000 VND (~9.60 USD).
• Mobi Explorer 15-day: 20GB total, 20 local minutes. 140,000 VND (~5.60 USD).
• D15 Daily: 3GB/day. 15,000 VND/day (~0.60 USD). Activate by SMS “D15” to 999.
• KC90 Monthly: 1GB/day, unlimited Mobifone calls under 10 minutes. 90,000 VND (~3.60 USD). Activate by SMS “KC90” to 999.

Vinaphone

• Hello Vietnam Vina 30-day: 55GB total, 80 local minutes. 250,000 VND (~10.00 USD).
• Vina Discover 15-day: 22GB total, 25 local minutes. 150,000 VND (~6.00 USD).
• D2 Daily: 2GB/day. 10,000 VND/day (~0.40 USD). Activate by SMS “D2” to 888.
• VD90 Monthly: 1GB/day, unlimited Vinaphone calls under 10 minutes. 90,000 VND (~3.60 USD). Activate by SMS “VD90” to 888.

For a two-week trip, Viettel’s Tourist Connect 15-day at 160,000 VND gives you the best value if you need solid nationwide coverage. For a month-long trip on a tight budget, Vinaphone’s VD90 at 90,000 VND handles everyday navigation and messaging without issue, though the 1GB daily cap will feel tight if you are streaming video.

How to Top Up and Check Your Data Balance

Running out of data mid-trip is genuinely annoying, especially when you are trying to navigate a new city or book a train ticket. Here is how to stay on top of your balance.

Checking Your Balance

• Viettel: Dial *101# for main credit balance, *102# for data balance. Or use the My Viettel app.
• Mobifone: Dial *101# for credit, *901*4# for data. Or use My Mobifone app.
• Vinaphone: Dial *101# for credit, *123# for data. Or use the My VNPT app.

Topping Up

• Scratch cards: Sold at convenience stores, phone shops, and official stores. Scratch off the silver panel, then dial *100*CARDCODE# and press call.
• Operator apps: My Viettel, My Mobifone, and My VNPT all allow top-ups using a linked bank account or e-wallet.
• MoMo and ZaloPay: These are Vietnam’s two dominant e-wallets, both widely accepted and both capable of topping up prepaid credit for all three operators directly within the app. If you plan to use e-wallets for other payments during your trip, adding credit through MoMo or ZaloPay is seamless.

What Changed Since 2024

Vietnam’s mobile connectivity landscape has shifted noticeably since 2024, and some of those changes affect how tourists navigate the SIM-buying process.

• Stricter SIM registration: The days of picking up an anonymous SIM from a motorbike vendor or a roadside stall are finished. Any unregistered SIM is now deactivated quickly by the network. Photo and biometric verification (fingerprint or face scan) at official points of sale is standard in 2026. This is not a barrier — it just means you must go to an official counter with your passport.
• eSIM has gone mainstream: In 2024, eSIM from local operators was still a relatively niche option for tourists. By 2026, all three major operators have dedicated tourist eSIM plans with online registration, making it viable to arrive fully connected without touching a SIM card tray.
• 5G expansion: 5G coverage has moved well beyond Hanoi and Ho Chi Minh City. By 2026, it covers most tourist hubs including Da Nang, Hue, Hoi An, Nha Trang, and Ha Long. Most new plans are marketed as 4G/5G enabled, so your speeds will depend on your phone’s 5G capability.
• Older low-data plans phased out: Plans with tiny data allowances that were common before 2022 have largely been retired. The baseline for a decent daily plan now starts at 2GB per day, which reflects how much heavier data usage has become.



• Better e-wallet integration: Topping up through MoMo and ZaloPay is now smoother, with real-time credit confirmation and plan activation directly within both apps.

Free WiFi in Vietnam

Vietnam has excellent free WiFi culture — almost every café, restaurant, guesthouse, and hotel provides it. In Hanoi’s Old Quarter on a weekday morning, you can smell pho broth drifting from corner stalls while the soft chime of café WiFi login prompts pings across every table. Connectivity here is embedded in daily life.

That said, free WiFi has its limits:

• Hotels and guesthouses: Generally reliable, though speeds in budget guesthouses can be slow during peak evening hours.
• Cafés: Vietnamese café culture means you will rarely be far from a cup of cà phê trứng and a fast WiFi connection. Chains like Highlands Coffee and The Coffee House have consistent speeds nationwide.
• Airports: Tan Son Nhat, Noi Bai, and Da Nang all offer free WiFi, though airport connections can be slow when terminals are busy.
• Public spaces and tourist sites: Less reliable. Do not count on free WiFi at outdoor attractions, markets, or on intercity buses.

Free WiFi is a useful supplement, not a replacement for a local data plan. For navigation, Grab rides, train bookings, and real-time translation, you need data that works when you are moving — and that means a SIM or eSIM.

Using Your Data on the Road

Once you have a working Vietnamese SIM, these are the apps that actually make a difference during the trip. The low hum of a Grab motorbike threading through traffic, your phone giving turn-by-turn directions to a restaurant three alleys deep — that is what reliable data enables.

• Grab — Covers ride-hailing (car and motorbike), food delivery, and increasingly, package sending. Essential in every major city.
• Google Maps or Apple Maps — Both work well in Vietnam’s cities. Google Maps has better coverage of smaller towns and rural roads.
• Vietnam Railways app / dsvn.vn — Book and manage train tickets on the go. The Reunification Express between Hanoi and Ho Chi Minh City is a popular route, and having data to check real-time schedules and seat availability gives you genuine flexibility.
• Google Translate — Download the Vietnamese language pack offline as a backup, but with data you get the live camera translation feature, which is invaluable for menus and signage.



• MoMo or ZaloPay — For topping up your SIM and making payments where QR code payments are accepted.

Common Mistakes to Avoid

• Leaving your passport in the hotel: You cannot buy or register a SIM without your original passport in hand. Do not make the trip to the airport counter twice.
• Buying from street vendors: Any SIM sold outside official channels is unregistered and will be deactivated. The savings are not worth it.
• Ignoring the daily data cap: Some plans throttle your speed after a daily limit rather than cutting off completely. If your plan says 2GB/day, streaming video in the evening will exhaust that quickly. Check the fine print before committing to a plan.
• Assuming your phone is eSIM compatible: Check your phone settings before you travel. Go to Settings → Cellular/Mobile Data and look for “Add eSIM” or “Add Data Plan.” If that option does not exist, you need a physical SIM.
• Forgetting to test the SIM before leaving the counter: Staff expect you to test connectivity on the spot. Do not leave until you have confirmed that data is working on your device.
• Using roaming out of habit: Even short-term roaming charges from your home carrier can easily exceed the entire cost of a Vietnamese SIM in a single day. Turn roaming off as soon as you land.

Frequently Asked Questions

Can I buy a Vietnam SIM card before I arrive?

Yes, through two routes. You can purchase an eSIM online from Viettel, Mobifone, or Vinaphone directly at their official websites, or through third-party providers like Airalo and Holafly. Physical SIMs can sometimes be pre-ordered through travel agencies for airport pickup, but verify the legitimacy of the seller before paying.

Do I need a passport to buy a SIM card in Vietnam?

Yes, your original passport is mandatory. Vietnam has required identity registration for all SIM purchases since 2017, and enforcement has become stricter every year since 2024. A photocopy or a photo on your phone will not be accepted at official counters. Bring the physical document.

Which network has the best coverage in rural Vietnam?

Viettel has the most extensive rural coverage by a clear margin. If you are visiting remote areas like Ha Giang, the Central Highlands, or off-track northern provinces, Viettel is the right choice. Mobifone and Vinaphone cover major tourist destinations well but can drop off in genuinely remote areas.

How much does a tourist SIM cost in Vietnam in 2026?

Tourist SIM packages for a 15-day trip start around 140,000–160,000 VND (5.60–6.40 USD). Thirty-day packages with larger data allowances typically range from 240,000–280,000 VND (9.60–11.20 USD). These prices include the SIM card itself and the initial data plan, making them exceptional value compared to international roaming.

Is free WiFi reliable enough to skip buying a local SIM?

For a very short stay based entirely in one hotel, possibly. For any trip involving movement between cities, outdoor activities, ride-hailing apps, or train bookings, free WiFi is not enough. You will regularly be in situations where there is no WiFi available, and that is exactly when you need data most. A local SIM costs less than a single café meal.

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📷 Featured image by Taan Huyn on Unsplash.